{"id":7353,"date":"2019-02-15T05:55:33","date_gmt":"2019-02-15T00:25:33","guid":{"rendered":"http:\/\/astan.lk\/al_virtualclassroom\/?p=7353"},"modified":"2019-02-15T09:22:29","modified_gmt":"2019-02-15T03:52:29","slug":"%e0%ae%ae%e0%af%87%e0%ae%b1%e0%af%8d%e0%ae%aa%e0%ae%b0%e0%ae%aa%e0%af%8d%e0%ae%aa%e0%ae%bf%e0%ae%b4%e0%af%81%e0%ae%b5%e0%af%88","status":"publish","type":"post","link":"https:\/\/astan.lk\/al_virtualclassroom\/ta\/%e0%ae%ae%e0%af%87%e0%ae%b1%e0%af%8d%e0%ae%aa%e0%ae%b0%e0%ae%aa%e0%af%8d%e0%ae%aa%e0%ae%bf%e0%ae%b4%e0%af%81%e0%ae%b5%e0%af%88\/","title":{"rendered":"\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8"},"content":{"rendered":"<p><strong>\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8<\/strong><br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bca\u0ba9\u0bcd\u0bb1\u0bbf\u0ba9\u0bcd \u0b9a\u0bc1\u0baf\u0bbe\u0ba4\u0bc0\u0ba9 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bcd \u0bb5\u0bb0\u0bc8\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f \u0b93\u0bb0\u0bb2\u0b95\u0bc1 \u0ba8\u0bc0\u0bb3\u0bae\u0bbe\u0ba9 \u0b95\u0bb1\u0bcd\u0baa\u0ba9\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0b9f\u0bcd\u0b9f\u0bc1\u0b95\u0bcd\u0b95\u0bc1 \u0b9a\u0bc6\u0b99\u0bcd\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bbe\u0b95 \u0b92\u0bb0\u0bc1 \u0baa\u0b95\u0bcd\u0b95\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0ba4\u0bbe\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1\u0ba4\u0bcd \u0ba4\u0bca\u0b9f\u0bb2\u0bbf\u0bb5\u0bbf\u0b9a\u0bc8 \u0b85\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 \u0b86\u0b95\u0bc1\u0bae\u0bcd.<\/p>\n<p>&nbsp;<\/p>\n<p>T = F\/l<\/p>\n<p>\u0b85\u0bb2\u0b95\u0bc1- Nm-1<\/p>\n<p>T = W\/A<\/p>\n<p>\u0b85\u0bb2\u0b95\u0bc1- Jm-2<\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/31.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7358 size-thumbnail\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/31-150x150.png\" alt=\"31\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><strong>\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bc8\u0b95\u0bcd\u0b95\u0bbe\u0ba9 \u0b95\u0bbe\u0bb0\u0ba3\u0bae\u0bcd<\/strong><br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bbf\u0bb2\u0bcd \u0b95\u0bc0\u0bb4\u0bcd\u0ba8\u0bcb\u0b95\u0bcd\u0b95\u0bbf \u0bae\u0b9f\u0bcd\u0b9f\u0bc1\u0bae\u0bc7 \u0b95\u0bb5\u0bb0\u0bcd\u0b9a\u0bcd\u0b9a\u0bbf \u0bb5\u0bbf\u0b9a\u0bc8 \u0ba4\u0bca\u0bb4\u0bbf\u0bb1\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd. \u0b8e\u0ba9\u0bb5\u0bc7 \u0b87\u0ba4\u0ba9\u0bcd \u0b95\u0bbe\u0bb0\u0ba3\u0bae\u0bbe\u0b95 \u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0baa\u0bc1\u0b95 \u0bae\u0bc1\u0baf\u0bb1\u0bcd\u0b9a\u0bbf\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd.<br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc8 \u0baa\u0bca\u0bb1\u0bc1\u0ba4\u0bcd\u0ba4\u0bae\u0b9f\u0bcd\u0b9f\u0bbf\u0bb2\u0bcd \u0b8e\u0bb2\u0bcd\u0bb2\u0bbe \u0ba4\u0bbf\u0b9a\u0bc8\u0baf\u0bbf\u0bb2\u0bc1\u0bae\u0bcd \u0b95\u0bb5\u0bb0\u0bcd\u0b9a\u0bcd\u0b9a\u0bbf \u0bb5\u0bbf\u0b9a\u0bc8 \u0ba4\u0bca\u0bb4\u0bbf\u0bb1\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd. \u0b8e\u0ba9\u0bb5\u0bc7 \u0bb5\u0bbf\u0bb3\u0bc8\u0baf\u0bc1\u0bb3\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8 \u0baa\u0bc2\u0b9a\u0bcd\u0b9a\u0bbf\u0baf\u0bae\u0bbe\u0b95\u0bc1\u0bae\u0bcd.<br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bc8 \u0bb5\u0bbf\u0b9f \u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bc1\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bcd \u0b85\u0ba4\u0bbf\u0b95 \u0b9a\u0b95\u0bcd\u0ba4\u0bbf \u0b89\u0b9f\u0bc8\u0baf\u0ba9.<a class=\"fancybox\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/32.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7362 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/32-300x109.png\" alt=\"32\" width=\"300\" height=\"109\" \/><\/a><br \/>\n<strong>\u0b92\u0bb0\u0bc1\u0b99\u0bcd\u0b95\u0bbf\u0ba3\u0bc8\u0baf\u0bc1\u0bae\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8<\/strong><br \/>\n\u0b85\u0baf\u0bb2\u0bbf\u0bb2\u0bc1\u0bb3\u0bcd\u0bb3 \u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bbf\u0ba9\u0bbe\u0bb2\u0bcd \u0b92\u0bb0\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bbf\u0ba9\u0bcd \u0bae\u0bc7\u0bb2\u0bcd \u0ba4\u0bbe\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8 \u0b92\u0bb0\u0bc1\u0b99\u0bcd\u0b95\u0bbf\u0ba3\u0bc8\u0baf\u0bc1\u0bae\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8 \u0b8e\u0ba9\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n<strong>\u0b92\u0b9f\u0bcd\u0b9f\u0bb1\u0bcd\u0baa\u0ba3\u0bcd\u0baa\u0bc1 \u0bb5\u0bbf\u0b9a\u0bc8<\/strong><br \/>\n\u0ba4\u0bbf\u0ba3\u0bcd\u0bae \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bc1\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bbf\u0ba9\u0bbe\u0bb2\u0bcd \u0b92\u0bb0\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bbf\u0ba9\u0bcd \u0bae\u0bc0\u0ba4\u0bc1 \u0ba4\u0bbe\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd\u0bb5\u0bbf\u0b9a\u0bc8 \u0b92\u0b9f\u0bcd\u0b9f\u0bb1\u0bcd\u0baa\u0ba3\u0bcd\u0baa\u0bc1 \u0bb5\u0bbf\u0b9a\u0bc8 \u0b8e\u0ba9\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n<strong>\u0b92\u0b9f\u0bcd\u0b9f\u0bb1\u0bcd\u0baa\u0ba3\u0bcd\u0baa\u0bc1 \u0bb5\u0bbf\u0b9a\u0bc8 &gt; \u0b92\u0bb0\u0bc1\u0b99\u0bcd\u0b95\u0bbf\u0ba3\u0bc8\u0baf\u0bc1\u0bae\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8{\u03b8&lt;90\u00b0}<\/strong><br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0b95\u0bc1\u0bb4\u0bbf\u0bb5\u0bc1\u0baa\u0bcd\u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bbe\u0ba9\u0ba4\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0b9a\u0bc1\u0bb5\u0bb0\u0bc1\u0b9f\u0ba9\u0bcd \u0b92\u0b9f\u0bcd\u0b9f\u0bbf\u0b95\u0bcd\u0b95\u0bca\u0bb3\u0bcd\u0bb3\u0bc1\u0bae\u0bcd.<br \/>\n<strong>\u0b92\u0bb0\u0bc1\u0b99\u0bcd\u0b95\u0bbf\u0ba3\u0bc8\u0baf\u0bc1\u0bae\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8&gt; \u0b92\u0b9f\u0bcd\u0b9f\u0bb1\u0bcd\u0baa\u0ba3\u0bcd\u0baa\u0bc1 \u0bb5\u0bbf\u0b9a\u0bc8{ \u03b8&gt;90\u00b0 }<\/strong><br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0b95\u0bc1\u0bb5\u0bbf\u0bb5\u0bc1\u0baa\u0bcd\u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bbe\u0b95 \u0b87\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd. \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b9a\u0bc1\u0bb5\u0bb0\u0bbf\u0bb2\u0bbf\u0bb0\u0bc1\u0ba8\u0bcd\u0ba4\u0bc1 \u0ba4\u0bb3\u0bcd\u0bb3\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0ba3\u0bae\u0bcd<\/strong><\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/33.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7360 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/33-300x132.png\" alt=\"33\" width=\"300\" height=\"132\" \/><\/a><\/p>\n<p>\u0ba4\u0bbf\u0ba3\u0bcd\u0bae \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1\u0bae\u0bcd, \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1\u0bae\u0bcd \u0b9a\u0ba8\u0bcd\u0ba4\u0bbf\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0baa\u0bc1\u0bb3\u0bcd\u0bb3\u0bbf\u0baf\u0bbf\u0bb2\u0bcd \u0bb5\u0bb0\u0bc8\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd<\/p>\n<p>\u0ba4\u0bbf\u0ba3\u0bcd\u0bae\u0ba4\u0bcd\u0ba4\u0bca\u0b9f\u0bb2\u0bbf \u0ba4\u0bb3\u0ba4\u0bcd\u0ba4\u0bbf\u0bb1\u0bcd\u0b95\u0bc1\u0bae\u0bcd, \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd \u0ba4\u0bca\u0b9f\u0bb2\u0bbf \u0ba4\u0bb3\u0ba4\u0bcd\u0ba4\u0bbf\u0bb1\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0b87\u0b9f\u0bc8\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc2\u0b9f\u0bc1 \u0b85\u0bae\u0bc8\u0ba8\u0bcd\u0ba4 \u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0b8e\u0ba9\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0ba4\u0bbf\u0ba3\u0bcd\u0bae\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0ba4\u0ba9\u0bcd\u0bae\u0bc8\u0baf\u0bbf\u0bb2\u0bcd \u0ba4\u0b99\u0bcd\u0b95\u0bbf\u0baf\u0ba4\u0bc1.<br \/>\n\u0ba4\u0bc2\u0baf \u0b95\u0ba3\u0bcd\u0ba3\u0bbe\u0b9f\u0bbf\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0ba4\u0bc2\u0baf \u0ba8\u0bc0\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0b87\u0b9f\u0bc8\u0baf\u0bbf\u0bb2\u0bcd \u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0baa\u0bc2\u0b9a\u0bcd\u0b9a\u0bbf\u0baf\u0bae\u0bbe\u0b95\u0bc1\u0bae\u0bcd<\/p>\n<p>.<br \/>\n\u0b87\u0bb0\u0b9a\u0ba4\u0bcd\u0ba4\u0bbf\u0bb1\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0b95\u0ba3\u0bcd\u0ba3\u0bbe\u0b9f\u0bbf\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0b87\u0b9f\u0bc8\u0baf\u0bc7\u0baf\u0bbe\u0ba9 \u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd\u0b95\u0bcb\u0ba3\u0bae\u0bcd 140<strong>\u00b0<\/strong> \u0b86\u0b95\u0bc1\u0bae\u0bcd.<br \/>\n\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc8 \u0ba8\u0ba9\u0bc8\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0b99\u0bcd\u0b95\u0bb3\u0bbf\u0ba9\u0bcd \u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0baa\u0bc2\u0b9a\u0bcd\u0b9a\u0bbf\u0baf\u0bae\u0bbe\u0b95\u0bc1\u0bae\u0bcd.<br \/>\n<strong>\u0b9a\u0bc1\u0baf\u0bbe\u0ba4\u0bc0\u0ba9 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b9a\u0b95\u0bcd\u0ba4\u0bbf<\/strong><br \/>\n\u0b9a\u0bae\u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0bc1 \u0ba8\u0bbf\u0baa\u0ba8\u0bcd\u0ba4\u0ba9\u0bc8\u0b95\u0bcd\u0b95\u0bae\u0bc8\u0baf \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bca\u0ba9\u0bcd\u0bb1\u0bbf\u0ba9\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbe\u0ba9\u0ba4\u0bc1 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8\u0b95\u0bcd\u0b95\u0bc1 \u0b8e\u0ba4\u0bbf\u0bb0\u0bbe\u0b95 \u0b92\u0bb0\u0bc1\u0b9a\u0ba4\u0bc1\u0bb0 \u0bae\u0bc0\u0bb1\u0bcd\u0bb1\u0bb0\u0bbf\u0ba9\u0bbe\u0bb2\u0bcd \u0b85\u0ba4\u0bbf\u0b95\u0bb0\u0bbf\u0b95\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd \u0baa\u0bcb\u0ba4\u0bc1 \u0b9a\u0bc6\u0baf\u0bcd\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd \u0bb5\u0bc7\u0bb2\u0bc8 \u0b9a\u0bc1\u0baf\u0bbe\u0ba4\u0bc0\u0ba9 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b9a\u0b95\u0bcd\u0ba4\u0bbf \u0b86\u0b95\u0bc1\u0bae\u0bcd.<\/p>\n<p>\u03c3 = W\/ A<\/p>\n<p>\u0b85\u0bb2\u0b95\u0bc1 &#8211; Jm-2<\/p>\n<p>\u0b9a\u0bc6\u0baf\u0bcd\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f\u0bb5\u0bc7\u0bb2\u0bc8 =\u0bb5\u0bbf\u0b9a\u0bc8 * \u0ba4\u0bc2\u0bb0\u0bae\u0bcd<\/p>\n<p>W = 2LT \u0394 x<br \/>\n\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 = 2L \u0394 x<br \/>\n\u03c3 = W\/A = 2LT \u0394 x\/ 2L \u0394 x<\/p>\n<p>\u03c3 = T<\/p>\n<p>\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 = \u0b9a\u0bc1\u0baf\u0bbe\u0ba4\u0bc0\u0ba9 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b9a\u0b95\u0bcd\u0ba4\u0bbf<\/p>\n<p>\u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0ba8\u0bbf\u0bb2\u0bc8\u0baf\u0bbe\u0ba9\u0ba4\u0bc1 \u0b95\u0bc2\u0b9f\u0bc1\u0bae\u0bcd\u0baa\u0bcb\u0ba4\u0bc1 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0b95\u0bc1\u0bb1\u0bc8\u0baf\u0bc1\u0bae\u0bcd.<\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/34.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7368 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/34-300x200.png\" alt=\"34\" width=\"300\" height=\"200\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><strong> \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0bb2\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5 \u0b8e\u0bb4\u0bc1\u0b95\u0bc8<\/strong><\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/35.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7366 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/35-300x165.png\" alt=\"35\" width=\"300\" height=\"165\" \/><\/a><\/p>\n<p>\u0b93\u0b9f\u0bcd\u0b9f\u0bb1\u0bcd\u0baa\u0ba3\u0bcd\u0baa\u0bc1 \u0bb5\u0bbf\u0b9a\u0bc8 \u0b92\u0bb0\u0bc1\u0b99\u0bcd\u0b95\u0bbf\u0ba3\u0bc8\u0bb5\u0bc1 \u0bb5\u0bbf\u0b9a\u0bc8\u0baf\u0bbf\u0bb2\u0bc1\u0bae\u0bcd \u0b89\u0baf\u0bb0\u0bcd\u0bb5\u0bbe\u0b95 \u0b87\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0baa\u0bcb\u0ba4\u0bc1 \u0bb5\u0bbf\u0bb3\u0bc8\u0baf\u0bc1\u0bb3\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8\u0baf\u0bbf\u0ba9\u0bcd \u0ba8\u0bbf\u0bb2\u0bc8\u0b95\u0bcd\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bc1 \u0b95\u0bc2\u0bb1\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bc8 \u0bae\u0bc7\u0bb2\u0bc7 \u0b8e\u0bb4\u0b9a\u0bcd \u0b9a\u0bc6\u0baf\u0bcd\u0baf\u0bc1\u0bae\u0bcd. \u0b85\u0bb5\u0bcd \u0ba8\u0bbf\u0bb2\u0bc8\u0b95\u0bcd\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bc1 \u0bb5\u0bbf\u0b9a\u0bc8 \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0ba8\u0bbf\u0bb1\u0bc8\u0b95\u0bcd\u0b95\u0bc1 \u0b9a\u0bae\u0ba9\u0bc1\u0bae\u0bcd \u0b8e\u0ba4\u0bbf\u0bb0\u0bc1\u0bae\u0bcd \u0b86\u0ba9\u0ba4\u0bc1\u0bae\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0b8f\u0bb1\u0bc1\u0bb5\u0ba4\u0bc1 \u0ba8\u0bbf\u0bb1\u0bcd\u0b95\u0bc1\u0bae\u0bcd.<\/p>\n<p>\u0ba4\u0bbf\u0bb0\u0bb5\u0ba8\u0bbf\u0bb0\u0bb2\u0bbf\u0ba9\u0bcd \u0ba8\u0bbf\u0bb1\u0bc8 = \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0bb2\u0bcd \u0ba4\u0bbe\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0bb5\u0bbf\u0b9a\u0bc8\u0baf\u0bbf\u0ba9\u0bcd \u0ba8\u0bbf\u0bb2\u0bc8\u0b95\u0bcd\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bc1 \u0b95\u0bc2\u0bb1\u0bc1<\/p>\n<p>Mg = 2\u03c0r TCOSQ<br \/>\n\u03c0r2 hpg = 2\u03c0r TCOSQ<br \/>\n<strong>h = 2TCOSQ\/ rpg <\/strong><\/p>\n<p>\u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0baa\u0bc2\u0b9a\u0bcd\u0b9a\u0bbf\u0baf\u0bae\u0bcd \u0b86\u0baf\u0bbf\u0ba9\u0bcd = 0<br \/>\n<strong>h = 2T\/ rpg <\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7371 size-medium aligncenter\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/36-124x300.png\" alt=\"36\" width=\"124\" height=\"300\" \/><\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/16.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7372 size-full aligncenter\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/16.png\" alt=\"16\" width=\"124\" height=\"195\" \/><\/a><\/p>\n<p>h = 2T R\/R\u03a1g \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 R-\u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bbf\u0ba9\u0bcd \u0b86\u0bb0\u0bc8<\/p>\n<p>\u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0b95\u0bc2\u0bb0\u0bcd\u0b99\u0bcd\u0b95\u0bcb\u0ba3\u0bae\u0bbe\u0b95 \u0b89\u0bb3\u0bcd\u0bb3 \u0ba4\u0bbf\u0bb0\u0bb5\u0b99\u0bcd\u0b95\u0bb3\u0bcd \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bcd\u0b95\u0bb3\u0bbf\u0bb2\u0bcd \u0bae\u0bc7\u0bb2\u0bc7 \u0b8f\u0bb1\u0bc1\u0bae\u0bcd. \u0ba4\u0bca\u0b9f\u0bc1\u0b95\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0ba3\u0bae\u0bcd \u0bb5\u0bbf\u0bb0\u0bbf\u0b95\u0bcb\u0ba3\u0bae\u0bbe\u0b95 \u0b89\u0b9f\u0bc8\u0baf \u0ba4\u0bbf\u0bb0\u0bb5\u0b99\u0bcd\u0b95\u0bb3\u0bcd \u0b95\u0bc0\u0bb4\u0bcd \u0ba8\u0bcb\u0b95\u0bcd\u0b95\u0bbf \u0b87\u0bb1\u0b99\u0bcd\u0b95\u0bc1\u0bae\u0bcd.<br \/>\n\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8 \u0b8e\u0bb4\u0bc1\u0b95\u0bc8 \u0bb5\u0bb3\u0bbf\u0bae\u0ba3\u0bcd\u0b9f\u0bb2 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0ba4\u0b99\u0bcd\u0b95\u0bbe\u0ba4\u0bc1.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0b95\u0bcb\u0bb3\u0baa\u0bcd\u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bc1\u0b95\u0bcd\u0b95\u0bc1 \u0b95\u0bc1\u0bb1\u0bc1\u0b95\u0bcd\u0b95\u0bc7\u0baf\u0bbe\u0ba9 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bb5\u0bbf\u0ba4\u0bcd\u0ba4\u0bbf\u0baf\u0bbe\u0b9a\u0bae\u0bcd<\/strong><br \/>\n<strong>\u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0bae\u0bbf\u0b95\u0bc8 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd<\/strong><br \/>\n\u0b85\u0bb0\u0bc8\u0b95\u0bcd\u0b95\u0bcb\u0bb3 \u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0b9a\u0bae\u0ba9\u0bbf\u0bb2\u0bc8\u0b95\u0bcd\u0b95\u0bc1 \u0b89\u0bb3\u0bcd \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd (P1) \u0b86\u0bb2\u0bbe\u0ba9 \u0bb5\u0bbf\u0b9a\u0bc8 =\u00a0\u0bb5\u0bc6\u0bb3\u0bbf \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd (P2) \u0b86\u0bb2\u0bbe\u0ba9 \u0bb5\u0bbf\u0b9a\u0bc8 +\u00a0\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8<\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/37.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7376 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/37-300x147.png\" alt=\"37\" width=\"300\" height=\"147\" \/><\/a><\/p>\n<p><a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/17.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7378\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/17.png\" alt=\"17\" width=\"245\" height=\"263\" \/><\/a><\/p>\n<p><a class=\"fancybox\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/38.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7380 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/38-87x300.png\" alt=\"38\" width=\"87\" height=\"300\" \/><\/a><\/p>\n<p>PA &#8211; PB = 2T\/r<\/p>\n<p>PC &#8211; PD = 2T\/r<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0bb5\u0bb3\u0bbf\u0baf\u0bbf\u0bb2\u0bcd \u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0bae\u0bbf\u0b95\u0bc8 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd<\/strong><br \/>\n\u0b85\u0bb0\u0bc8\u0b95\u0bcd\u0b95\u0bcb\u0bb3 \u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0b9a\u0bae\u0ba9\u0bbf\u0bb2\u0bc8\u0b95\u0bcd\u0b95\u0bc1<br \/>\n\u0b89\u0bb3\u0bcd \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd (P1) \u0b86\u0bb2\u0bbe\u0ba9 \u0bb5\u0bbf\u0b9a\u0bc8 = \u0bb5\u0bc6\u0bb3\u0bbf \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd (P2) \u0b86\u0bb2\u0bbe\u0ba9 \u0bb5\u0bbf\u0b9a\u0bc8+ \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8<\/p>\n<div id='gallery-1' class='gallery galleryid-7353 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/astan.lk\/al_virtualclassroom\/ta\/%e0%ae%ae%e0%af%87%e0%ae%b1%e0%af%8d%e0%ae%aa%e0%ae%b0%e0%ae%aa%e0%af%8d%e0%ae%aa%e0%ae%bf%e0%ae%b4%e0%af%81%e0%ae%b5%e0%af%88\/attachment\/18\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"144\" src=\"https:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/18-150x144.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p><a class=\"fancybox\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/39.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7384 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/39-300x155.png\" alt=\"39\" width=\"300\" height=\"155\" \/><\/a><\/p>\n<p><a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/18-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7386\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/18-1.png\" alt=\"18\" width=\"295\" height=\"144\" \/><\/a><\/p>\n<p><strong>\u0baa\u0bc1\u0bb5\u0b9a\u0bc7\u0baf\u0bbf\u0ba9\u0bcd \u0b9a\u0bc2\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0ba4\u0bcd\u0ba4\u0bc8 \u0b89\u0baa\u0baf\u0bcb\u0b95\u0bbf\u0ba4\u0bcd\u0ba4\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0b92\u0ba9\u0bcd\u0bb1\u0bbf\u0ba9\u0bcd \u0baa\u0bbf\u0b9a\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0ba3\u0b95\u0bae\u0bcd \u0ba4\u0bc1\u0ba3\u0bbf\u0ba4\u0bb2\u0bcd<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/41_1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7388 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/41_1-300x188.png\" alt=\"41_1\" width=\"300\" height=\"188\" \/><\/a><\/p>\n<p>\u0ba4\u0bb0\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f \u0b89\u0bb0\u0bc1\u0bb5\u0bae\u0bc8\u0baa\u0bcd\u0baa\u0bc8 \u0b92\u0bb4\u0bc1\u0b99\u0bcd\u0b95\u0bc1 \u0b9a\u0bc6\u0baf\u0bcd\u0ba4\u0bc1 \u0b89\u0bb1\u0bc1\u0ba4\u0bbf \u0ba8\u0bbf\u0bb2\u0bc8 \u0bb5 \u0baf\u0bbf\u0bb2\u0bcd \u0b85\u0bb3\u0bb5\u0bc1\u0b9a\u0bcd \u0b9a\u0bbe\u0b9f\u0bbf\u0baf\u0bbf\u0bb2\u0bcd \u0b9a\u0bc7\u0b95\u0bb0\u0bbf\u0b95\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0b8f \u0b95\u0ba9\u0bb5\u0bb3\u0bb5\u0bc1 \u0ba4\u0bc1\u0ba3\u0bbf\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd<br \/>\n\u0baa\u0bc1\u0bb5\u0b9a\u0bc7\u0baf\u0bbf\u0ba9\u0bcd \u0b9a\u0bc2\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0baa\u0bcd\u0baa\u0b9f\u0bbf,<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/19.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7390\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/19.png\" alt=\"19\" width=\"122\" height=\"197\" \/><\/a><\/p>\n<p><a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/42.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7392\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/42.png\" alt=\"42\" width=\"382\" height=\"338\" \/><\/a><\/p>\n<p>\u0b86\u0bb0\u0bae\u0bcd\u0baa\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bc8 \u0bae\u0bc1\u0ba4\u0bb2\u0bbf\u0bb2\u0bcd \u0baf\u0bc7 NaOH, HCL\u00a0\u0ba8\u0bc0\u0bb0\u0bbf\u0ba9\u0bbe\u0bb2\u0bcd \u0b95\u0bb4\u0bc1\u0bb5\u0bbf \u0baa\u0bbf\u0ba9\u0bcd \u0baa\u0bbf\u0ba9\u0bcd\u0bb5\u0bb0\u0bc1\u0bae\u0bcd \u0b85\u0bae\u0bc8\u0baa\u0bcd\u0baa\u0bc8 \u0b85\u0bae\u0bc8\u0ba4\u0bcd\u0ba4\u0bc1 \u0b85\u0bb3\u0bb5\u0bc1\u0b9a\u0bcd\u0b9a\u0bbe\u0b9f\u0bbf\u0baf\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b95\u0bc1\u0bb1\u0bbf\u0ba4\u0bcd\u0ba4 \u0ba8\u0bc7\u0bb0\u0bae\u0bcd \u0baa\u0bcb\u0ba4\u0bc1\u0bae\u0bbe\u0ba9 \u0b85\u0bb3\u0bb5\u0bc1 \u0ba8\u0bc0\u0bb0\u0bc8\u0baa\u0bcd \u0baa\u0bc6\u0bb1\u0bcd\u0bb1\u0bc1\u0b95\u0bcd\u0b95\u0bca\u0bb3\u0bcd\u0bb3 \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0b85\u0bb0\u0bc1\u0bb5\u0bbf\u0b95\u0bcd \u0b95\u0bcb\u0b9f\u0bcd\u0b9f\u0bc1\u0baa\u0bcd \u0baa\u0bbe\u0baf\u0bcd\u0b9a\u0bcd\u0b9a\u0bb2\u0bc8 \u0baa\u0bc7\u0ba3\u0bc1\u0bb5\u0ba4\u0bb1\u0bcd\u0b95\u0bbe\u0b95 \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0ba9\u0bc2\u0b9f\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0bae\u0bc6\u0ba4\u0bc1\u0bb5\u0bbe\u0b95\u0baa\u0bcd \u0baa\u0bbe\u0baf \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd. \u0b8f\u0ba9\u0bc6\u0ba9\u0bbf\u0bb2\u0bcd \u0b85\u0bb0\u0bc1\u0bb5\u0bbf\u0b95\u0bcd \u0b95\u0bcb\u0b9f\u0bcd\u0b9f\u0bc1 \u0baa\u0bbe\u0baf\u0bcd\u0b9a\u0bcd\u0b9a\u0bb2\u0bc1\u0b95\u0bcd\u0b95\u0bc1 \u0bae\u0bbe\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0bae\u0bc7 \u0baa\u0bc1\u0bb5\u0b9a\u0bc7\u0baf\u0bbf\u0ba9\u0bcd \u0b9a\u0bae\u0ba9\u0bcd\u0baa\u0bbe\u0b9f\u0bc1 \u0b89\u0ba3\u0bcd\u0bae\u0bc8.<br \/>\n\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b87\u0bb0\u0b9a\u0ba8\u0bbf\u0bb0\u0bb2\u0bc8 \u0baa\u0bc1\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bbf \u0b89\u0bb3\u0bcd \u0b86\u0bb0\u0bc8 \u0ba4\u0bc1\u0ba3\u0bbf\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd \u0baa\u0bbf\u0ba9\u0bcd \u0b87\u0bb0\u0b9a\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0ba8\u0bbf\u0bb1\u0bc8 \u0bae\u0bc1\u0ba4\u0bcd\u0ba4\u0bc1\u0bb2\u0bbe\u0ba4\u0bcd \u0ba4\u0bb0\u0bbe\u0b9a\u0bbf\u0ba9\u0bbe\u0bb2\u0bcd \u0b85\u0bb1\u0bbf\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f\u0bc1 \u0b86\u0bb0\u0bc8 \u0ba4\u0bc1\u0ba3\u0bbf\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\nr<sup>4\u00a0<\/sup>\u0baa\u0bc6\u0bb1\u0bc1\u0bae\u0bbe\u0ba9\u0bae\u0bcd \u0bae\u0bbf\u0b95\u0b9a\u0bcd\u0b9a\u0bbf\u0bb1\u0bbf\u0baf\u0ba4\u0bc1 \u0b8e\u0ba9\u0bcd\u0baa\u0ba4\u0bbe\u0bb2\u0bcd \u0ba4\u0bbf\u0bb0\u0bc1\u0ba4\u0bcd\u0ba4\u0bae\u0bbe\u0b95 \u0b85\u0bb3\u0bb5\u0bbf\u0b9f\u0bb2\u0bcd \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0bb8\u0bcd\u0bb0\u0bcb\u0b95\u0bcd\u0b95\u0bbf\u0ba9\u0bcd \u0bb5\u0bbf\u0ba4\u0bbf\u0baf\u0bc8 \u0b89\u0baa\u0baf\u0bcb\u0b95\u0bbf\u0ba4\u0bcd\u0ba4\u0bc1 \u0b87\u0bb0\u0bc1\u0ba4\u0bbf\u0bb0\u0bb5\u0b99\u0bcd\u0b95\u0bb3\u0bbf\u0ba9\u0bcd \u0baa\u0bbf\u0b9a\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bc8\u0baf\u0bc8 \u0b92\u0baa\u0bcd\u0baa\u0bbf\u0b9f\u0bb2\u0bcd<\/strong><br \/>\n\u0b89\u0baf\u0bb0\u0bae\u0bbe\u0ba9 \u0baa\u0bbe\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0baa\u0bbf\u0b9a\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0ba3\u0b95\u0bae\u0bcd \u0b92\u0baa\u0bcd\u0baa\u0bbf\u0b9f\u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bbf\u0baf \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bc8 \u0b8e\u0b9f\u0bc1\u0ba4\u0bcd\u0ba4\u0bc1 \u0b9a\u0bbf\u0bb1\u0bbf\u0baf \u0b89\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1 \u0b95\u0bcb\u0bb3\u0bae\u0bcd \u0bae\u0bc7\u0bb2\u0bbf\u0bb0\u0bc1\u0ba8\u0bcd\u0ba4\u0bc1 \u0b95\u0bc0\u0bb4\u0bc7 \u0bb5\u0bbf\u0bb4 \u0bb5\u0bbf\u0b9f\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.A\u00a0 \u0baf\u0bbf\u0bb2\u0bbf\u0bb0\u0bc1\u0ba8\u0bcd\u0ba4\u0bc1 B \u00a0\u0b95\u0bcd\u0b95\u0bc1 \u0b9a\u0bc6\u0bb2\u0bcd\u0bb2 \u0b8e\u0b9f\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0ba8\u0bc7\u0bb0\u0bae\u0bcd t1 \u0b85\u0bb3\u0b95\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<\/p>\n<p><a class=\"fancybox\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/43.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7394 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/43-300x210.png\" alt=\"43\" width=\"300\" height=\"210\" \/><\/a><br \/>\n\u0bae\u0bc1\u0ba4\u0bb2\u0bbe\u0bb5\u0ba4\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0bb1\u0bcd\u0b95\u0bc1<a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/20.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7395\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/20.png\" alt=\"20\" width=\"189\" height=\"315\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\u0b87\u0bb0\u0ba3\u0bcd\u0b9f\u0bbe\u0bb5\u0ba4\u0bc1 \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0bb1\u0bcd\u0b95\u0bc1<br \/>\n<strong>Note :<\/strong><br \/>\n* \u0b89\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0b95\u0bcd \u0b95\u0bcb\u0bb3\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0b86\u0bb0\u0bc8 \u0bae\u0bbf\u0b95\u0b9a\u0bcd\u0b9a\u0bbf\u0bb1\u0bbf\u0baf\u0ba4\u0bbe\u0b95 \u0b87\u0bb0\u0bc1\u0ba4\u0bcd\u0ba4\u0bb2\u0bcd\u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd. \u0b95\u0bbe\u0bb0\u0ba3\u0bae\u0bcd \u0b86\u0bb0\u0bc8 \u0b9a\u0bbf\u0bb1\u0bbf\u0ba4\u0bbe\u0b95 \u0b87\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd\u0baa\u0bcb\u0ba4\u0bc7 \u0bae\u0bc1\u0b9f\u0bbf\u0bb5\u0bc1 \u0bb5\u0bc7\u0b95\u0bae\u0bcd \u0b9a\u0bbf\u0bb1\u0bbf\u0ba4\u0bbe\u0b95 \u0b87\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd.<br \/>\n*\u0bae\u0bc1\u0b9f\u0bbf\u0bb5\u0bc1\u0bb5\u0bc7\u0b95\u0bae\u0bcd \u0b9a\u0bbf\u0bb1\u0bbf\u0ba4\u0bbe\u0b95 \u0b87\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd\u0baa\u0bcb\u0ba4\u0bc7 \u0bb8\u0bcd\u0bb0\u0bcb\u0b95\u0bcd\u0b95\u0bbf\u0ba9\u0bcd \u0bb5\u0bbf\u0ba4\u0bbf \u0b89\u0ba3\u0bcd\u0bae\u0bc8\u0baf\u0bbe\u0b95\u0bc1\u0bae\u0bcd.<br \/>\n*\u0b87\u0bae\u0bcd\u0bae\u0bc1\u0bb1\u0bc8 \u0baa\u0bbf\u0b9a\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bc8 \u0b95\u0bc2\u0b9f\u0bbf\u0baf \u0ba4\u0bbf\u0bb0\u0bb5\u0b99\u0bcd\u0b95\u0bb3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0b85\u0ba4\u0bbf\u0b95 \u0b85\u0bb3\u0bb5\u0bbf\u0bb2\u0bcd \u0baa\u0bc6\u0bb1\u0b95\u0bcd\u0b95\u0bc2\u0b9f\u0bbf\u0baf \u0ba4\u0bbf\u0bb0\u0bb5\u0b99\u0bcd\u0b95\u0bb3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bc7 \u0b89\u0b95\u0ba8\u0bcd\u0ba4\u0ba4\u0bc1.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0ba8\u0bc1\u0ba3\u0bc1\u0b95\u0bcd\u0b95\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf \u0bb5\u0bb4\u0bc1\u0b95\u0bcd\u0b95\u0bbf\u0baf\u0bc8\u0baa\u0bcd \u0baa\u0baf\u0ba9\u0bcd\u0baa\u0b9f\u0bc1\u0ba4\u0bcd\u0ba4\u0bbf \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0b92\u0ba9\u0bcd\u0bb1\u0bbf\u0ba9\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bc8\u0baf\u0bc8 \u0ba4\u0bc1\u0ba3\u0bbf\u0ba4\u0bb2\u0bcd.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/44.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7397 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/44-300x59.png\" alt=\"44\" width=\"300\" height=\"59\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\u0ba4\u0bb0\u0bbe\u0b9a\u0bbf\u0ba9\u0bcd \u0b92\u0bb0\u0bc1\u0baa\u0bc1\u0baf\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0b87\u0bb0\u0bc1\u0ba8\u0bcd\u0ba4\u0bc1 \u0b92\u0bb0\u0bc1\u0ba8\u0bc1\u0ba3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0b95\u0bcd\u0b95\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf \u0bb5\u0bb4\u0bc1\u0b95\u0bcd\u0b95\u0bbf \u0b85\u0ba4\u0ba9\u0bcd \u0b95\u0bc0\u0bb4\u0bcd\u0b93\u0bb0\u0bae\u0bcd \u0b95\u0bbf\u0b9f\u0bc8\u0baf\u0bbe\u0b95 \u0b87\u0bb0\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bbe\u0bb1\u0bc1 \u0ba4\u0bca\u0b99\u0bcd\u0b95 \u0bb5\u0bbf\u0b9f\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0bae\u0bb1\u0bc1\u0baa\u0bc1\u0baf\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0ba8\u0bbf\u0bb1\u0bc8\u0baa\u0bcd\u0baa\u0b9f\u0bbf\u0b95\u0bb3\u0bcd \u0b87\u0b9f\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f\u0bc1 \u0ba8\u0bbf\u0bb1\u0bc8\u0baa\u0bcd\u0baa\u0b9f\u0bbf\u0b95\u0bb3\u0bcd \u0b87\u0b9f\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f\u0bc1 \u0ba4\u0bb0\u0bbe\u0b9a\u0bc1 \u0b9a\u0bae\u0ba9\u0bbf\u0bb2\u0bc8\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0ba4\u0bcd\u0ba4\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0bb5\u0bb4\u0bc1\u0b95\u0bcd\u0b95\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0b95\u0bc0\u0bb4\u0bcd \u0b93\u0bb0\u0ba4\u0bcd\u0ba4\u0bc8 \u0bae\u0b9f\u0bcd\u0b9f\u0bc1\u0bae\u0b9f\u0bcd\u0b9f\u0bbe\u0b95 \u0ba4\u0bca\u0b9f\u0bc1\u0bae\u0bbe\u0bb1\u0bc1 \u0b92\u0bb0\u0bc1 \u0bae\u0bc1\u0b95\u0bb5\u0bc8\u0baf\u0bbf\u0bb2\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bcd \u0baa\u0bbf\u0b9f\u0bbf\u0b95\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0bae\u0bc0\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd \u0ba4\u0bb0\u0bbe\u0b9a\u0bc1 \u0b9a\u0bae\u0ba9\u0bbf\u0bb2\u0bc8 \u0b85\u0b9f\u0bc8\u0baf\u0bc1\u0bae\u0bcd \u0bb5\u0b95\u0bc8\u0baf\u0bbf\u0bb2\u0bcd \u0ba4\u0bb0\u0bbe\u0b9a\u0bc1\u0ba4\u0bcd \u0ba4\u0b9f\u0bcd\u0b9f\u0bbf\u0bb2\u0bcd \u0bae\u0bc7\u0bb2\u0ba4\u0bbf\u0b95 \u0ba4\u0bbf\u0ba3\u0bbf\u0bb5\u0bc1\u0b95\u0bb3\u0bcd \u0bb5\u0bc8\u0b95\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<\/p>\n<p>&nbsp;<\/p>\n<p>\u0bb5\u0bb4\u0bc1\u0b95\u0bcd\u0b95\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0bae\u0bc0\u0ba4\u0bc1 \u0ba4\u0bca\u0bb4\u0bbf\u0bb1\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd =\u0b9a\u0bc1\u0bae\u0bc8<br \/>\n\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8<br \/>\n2(a + b) T = mg<br \/>\nT = mg\/ 2(a + b)<\/p>\n<p>T = abhpg\/ 2(a + b)<\/p>\n<p>\u0ba8\u0bc0\u0bb3\u0ba4\u0bcd\u0ba4\u0bc8 \u0bb5\u0bc7\u0ba3\u0bbf\u0baf\u0bb0\u0bcd \u0b87\u0b9f\u0bc1\u0b95\u0bcd\u0b95\u0bbf\u0bae\u0bbe\u0ba9\u0bbf\u0baf\u0bbf\u0ba9\u0bbe\u0bb2\u0bc1\u0bae\u0bcd\u00e4\u00e4 \u0ba4\u0b9f\u0bbf\u0baa\u0bcd\u0baa\u0bc8 \u0ba8\u0bc1\u0ba3\u0bcd\u0bae\u0bbe\u0ba9\u0bbf\u0ba4\u0bcd \u0ba4\u0bbf\u0bb0\u0bc1\u0b95\u0bc1 \u0b95\u0ba3\u0bbf\u0b9a\u0bcd\u0b9a\u0bbf\u0baf\u0bbe\u0bb2\u0bc1\u0bae\u0bcd \u0b85\u0bb3\u0b95\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0baa\u0bb0\u0bbf\u0b9a\u0bcb\u0ba4\u0ba9\u0bc8\u0baf\u0bbf\u0ba9\u0bcd \u0b86\u0bb0\u0bae\u0bcd\u0baa\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0ba8\u0bc1\u0ba3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0b95\u0bcd\u0b95\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf \u0bb5\u0bb4\u0bc1\u0b95\u0bcd\u0b95\u0bbf\u0baf\u0bc8 \u0b8e\u0b9f\u0bc1\u0ba4\u0bcd\u0ba4\u0bc1 \u0bae\u0bc1\u0ba4\u0bb2\u0bbf\u0bb2\u0bcd NaOH\u00a0\u0b86\u0bb2\u0bc1\u0bae\u0bcd HCL \u0b95\u0bb0\u0bc8\u0b9a\u0bb2\u0bbe\u0bb2\u0bc1\u0bae\u0bcd\u00e4\u00e4 \u0baa\u0bbf\u0ba9\u0bcd\u0ba9\u0bb0\u0bcd \u0ba8\u0bc0\u0bb0\u0bbf\u0bb2\u0bc1\u0bae\u0bcd \u0ba8\u0ba9\u0bcd\u0b95\u0bc1 \u0b95\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bcd \u0b9a\u0bc1\u0ba4\u0bcd\u0ba4\u0bbf\u0b95\u0bcd\u0b95\u0bb0\u0bbf\u0ba4\u0bcd\u0ba4\u0bb2\u0bcd \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0ba8\u0bc0\u0bb0\u0bbf\u0ba9\u0bcd \u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 \u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0ba8\u0bbf\u0bb2\u0bc8\u0baf\u0bc1\u0b9f\u0ba9\u0bcd \u0bae\u0bbe\u0bb1\u0bc1\u0bae\u0bcd. \u0b8e\u0ba9\u0bb5\u0bc7 \u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0ba8\u0bbf\u0bb2\u0bc8\u0baf\u0bc8 \u0b95\u0bc1\u0bb1\u0bbf\u0ba4\u0bcd\u0ba4\u0bc1\u0b95\u0bcd \u0b95\u0bca\u0bb3\u0bcd\u0bb3\u0baa\u0bcd\u0baa\u0b9f \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n<strong>\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd\u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bcd \u0b8e\u0bb4\u0bc1\u0b95\u0bc8 \u0bae\u0bc1\u0bb1\u0bc8\u0baf\u0bbe\u0bb2\u0bcd \u0ba8\u0bc0\u0bb0\u0bbf\u0ba9\u0bcd \u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8\u0baf\u0bc8 \u0ba4\u0bc1\u0ba3\u0bbf\u0ba4\u0bb2\u0bcd<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong><a class=\"fancybox\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/45.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7403 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/45-300x149.png\" alt=\"45\" width=\"300\" height=\"149\" \/><\/a><\/strong><br \/>\n\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bcd \u0bae\u0bc1\u0ba4\u0bb2\u0bbf\u0bb2\u0bcd NaOH \u0b95\u0bb0\u0bc8\u0b9a\u0bb2\u0bcd HCL \u0b95\u0bb0\u0bc8\u0b9a\u0bb2\u0bcd \u0baa\u0bbf\u0ba9\u0bcd \u0ba8\u0bc0\u0bb0\u0bbf\u0ba9\u0bbe\u0bb2\u0bcd \u0b95\u0bb4\u0bc1\u0bb5\u0bbf \u0baa\u0bbf\u0ba9\u0bcd\u0ba9\u0bb0\u0bcd \u0b89\u0bb2\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bbf\u0b95\u0bcd \u0b95\u0bca\u0bb3\u0bcd\u0b95.<br \/>\n\u0ba8\u0bc0\u0bb0\u0bc8\u0b95\u0bcd \u0b95\u0bca\u0ba3\u0bcd\u0b9f \u0bae\u0bc1\u0b95\u0bb5\u0bc8\u0baf\u0bbf\u0ba9\u0bcd \u0b89\u0baf\u0bb0\u0ba4\u0bcd\u0ba4\u0bc8 \u0bae\u0bbe\u0bb1\u0bcd\u0bb1\u0ba4\u0bcd\u0ba4\u0b95\u0bcd\u0b95 \u0bb5\u0bbf\u0ba4\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0bb5\u0bbe\u0b99\u0bcd\u0b95\u0bbf\u0baf\u0bc8 \u0bb5\u0b9f\u0bbf\u0bb5\u0bae\u0bc8\u0b95\u0bcd\u0b95 \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0baa\u0bbf\u0ba9\u0bcd \u0ba8\u0b95\u0bb0\u0bc1\u0bae\u0bcd \u0ba8\u0bc1\u0ba3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0b95\u0bcd\u0b95\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf\u0baf\u0bc8 \u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bbf\u0ba9\u0bcd \u0b85\u0b9f\u0bbf\u0b95\u0bcd\u0b95\u0bc1 \u0b95\u0bc1\u0bb5\u0bbf\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0ba4\u0bcd\u0ba4\u0bbf \u0bb5\u0bbe\u0b9a\u0bbf\u0baa\u0bcd\u0baa\u0bc1 \u0baa\u0bc6\u0bb1\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n. \u0baa\u0bbf\u0ba9\u0bcd\u0ba9\u0bb0\u0bcd \u0ba8\u0bc0\u0bb0\u0bc1\u0b9f\u0ba9\u0bcd \u0b95\u0bc2\u0b9f\u0bbf\u0baf \u0bae\u0bc1\u0b95\u0bb5\u0bc8 \u0b85\u0b95\u0bb1\u0bcd\u0bb1\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f\u0bc1 \u0ba8\u0bc1\u0ba3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0b95\u0bcd \u0b95\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf\u0baf\u0bc8 \u0b8a\u0b9a\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0b95\u0bc0\u0bb4\u0bcd \u0ba8\u0bc1\u0ba9\u0bbf\u0b95\u0bcd\u0b95\u0bc1 \u0b95\u0bc1\u0bb5\u0bbf\u0baf\u0baa\u0b9f\u0bc1\u0ba4\u0bcd\u0ba4\u0bbf \u0bb5\u0bbe\u0b9a\u0bbf\u0baa\u0bcd\u0baa\u0bc1 \u0baa\u0bc6\u0bb1\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8 \u0b8f\u0bb1\u0bcd\u0bb1\u0bae\u0bcd H = [H1 &#8211; H2<\/p>\n<p>\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0baf\u0bbf\u0ba9\u0bcd \u0b87\u0b9f\u0bc8\u0bb5\u0bbf\u0b9f\u0bcd\u0b9f\u0bae\u0bcd d = [x2 &#8211; x1] + [y2 &#8211; y1]<br \/>\n\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8 \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0ba9\u0bcd \u0b86\u0bb0\u0bc8 = d\/2<\/p>\n<p>&nbsp;<\/p>\n<p><a class=\"fancybox\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/46.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7404 size-thumbnail\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/46-150x150.png\" alt=\"46\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7406\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/21.png\" alt=\"21\" width=\"190\" height=\"188\" \/><\/p>\n<p>\u0b8a\u0b9a\u0bbf\u0baf\u0bc8 \u0ba8\u0bc0\u0bb0\u0bcd\u0bae\u0b9f\u0bcd\u0b9f\u0ba4\u0bcd\u0ba4\u0bc8 \u0b95\u0bc1\u0bb1\u0bbf\u0ba4\u0bcd\u0ba4\u0bc1\u0b95\u0bcd\u0b95\u0bca\u0bb3\u0bcd\u0bb3 \u0baa\u0baf\u0ba9\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<br \/>\n\u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd\u0b95\u0bc1 \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bcd \u0b8e\u0bb4\u0bc1\u0b95\u0bc8 \u0bb5\u0bb3\u0bbf\u0bae\u0ba3\u0bcd\u0b9f\u0bb2 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0ba4\u0b99\u0bcd\u0b95\u0bbf\u0baf\u0bbf\u0bb2\u0bcd\u0bb2\u0bc8.<br \/>\n\u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0ba8\u0bbf\u0bb2\u0bc8\u0baf\u0bc1\u0b9f\u0ba9\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0bae\u0bbe\u0bb1\u0bc1\u0baa\u0b9f\u0bc1\u0bb5\u0ba4\u0bbe\u0bb2\u0bcd \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8 \u0b8e\u0bb4\u0bc1\u0b95\u0bc8 \u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0ba8\u0bbf\u0bb2\u0bc8\u0baf\u0bc1\u0b9f\u0ba9\u0bcd \u0bae\u0bbe\u0bb1\u0bc1\u0baa\u0b9f\u0bc1\u0bae\u0bcd.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0baf\u0bcb\u0b95\u0bb0\u0bbf\u0ba9\u0bcd \u0bae\u0bc1\u0bb1\u0bc8\u0baf\u0bbe\u0bb2\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bc8\u0baf\u0bc8 \u0ba4\u0bc1\u0ba3\u0bbf\u0ba4\u0bb2\u0bcd<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/47.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7408 size-medium\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/47-300x146.png\" alt=\"47\" width=\"300\" height=\"146\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bc8\u0baf\u0bc8 \u0b85\u0bb3\u0b95\u0bcd\u0b95 \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bbf\u0baf \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 \u0bb5\u0bc1 \u0b89\u0bae\u0bcd\u00e4\u00e4 \u0b85\u0b9f\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bbf &#8211; P<br \/>\n\u0bae\u0bc6\u0bb2\u0bbf\u0bae\u0bbe\u0ba9\u0bbf \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0ba3\u0bcd\u0ba3\u0bc6\u0ba3\u0bcd\u0baf\u0bc6\u0ba3\u0bcd \u0b85\u0b9f\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bbf &#8211; P2<br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5 \u0ba8\u0bbf\u0bb0\u0bb2\u0bcd \u0bb5\u0bbf\u0ba4\u0bcd\u0ba4\u0bbf\u0baf\u0bbe\u0b9a\u0bae\u0bcd (\u0bae\u0bc6\u0bb2\u0bbf\u0bae\u0bbe\u0ba9\u0bbf) &#8211; h1<br \/>\n\u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0b9f\u0bcd\u0b9f\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bbf\u0bb0\u0bc1\u0ba8\u0bcd\u0ba4\u0bc1 \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0ba9\u0bcd \u0b85\u0ba8\u0bcd\u0ba4\u0bae\u0bcd \u0bb5\u0bb0\u0bc8\u0baf\u0bbe\u0ba9 \u0b86\u0bb4\u0bae\u0bcd &#8211; h2 \u0bb5\u0bb3\u0bbf\u0bae\u0ba3\u0bcd\u0b9f\u0bb2 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd &#8211; \u03c0<\/p>\n<p>\u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd &#8211; (P1) \u00a0= \u03c0 10 h1p1g<br \/>\n\u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bc1\u0b95\u0bcd\u0b95\u0bc1 \u0bb5\u0bc6\u0bb3\u0bbf\u0baf\u0bc7 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd &#8211; P2=\u00a0\u03c0 10 h2p2g<br \/>\n\u0bae\u0bc7\u0bb2\u0ba4\u0bbf\u0b95 \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd =\u00a0P1 &#8211; P2<br \/>\n=\u00a0(h1p1g &#8211; h2P2)<br \/>\n=2T\/r(h1p1 &#8211; h2p2)g<\/p>\n<p>=T=gr\u00a0(h1p1 &#8211; h2p2)\/2<\/p>\n<p>\u0bae\u0bc6\u0bb2\u0bbf\u0bae\u0bbe\u0ba9\u0bbf\u0baf\u0bbf\u0bb2\u0bcd \u0baa\u0bcb\u0ba4\u0bc1\u0bae\u0bbe\u0ba9 \u0b85\u0bb3\u0bb5\u0bc1 \u0bae\u0ba3\u0bcd\u0ba3\u0bc6\u0ba3\u0bcd\u0ba3\u0bc6\u0baf\u0bcd (P1) \u0b87\u0b9f\u0bc1\u0b95.<br \/>\n\u0b89\u0baa\u0b95\u0bb0\u0ba3\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bcd \u0ba8\u0bbf\u0bb2\u0bc8\u0b95\u0bcd\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bbe\u0b95 \u0b85\u0bae\u0bc8\u0baf\u0bc1\u0bae\u0bbe\u0bb1\u0bc1 \u0ba4\u0bbe\u0b99\u0bcd\u0b95\u0bbf\u0baf\u0bca\u0ba9\u0bcd\u0bb1\u0bbf\u0ba9\u0bcd \u0bae\u0bc2\u0bb2\u0bae\u0bcd \u0b87\u0ba3\u0bc8\u0b95\u0bcd\u0b95.<br \/>\n\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bc8\u0baf\u0bc8\u0ba4\u0bcd \u0ba4\u0bc1\u0ba3\u0bbf\u0baf \u0bb5\u0bc7\u0ba3\u0bcd\u0b9f\u0bbf\u0baf \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bc8\u0b9a\u0bcd \u0b9a\u0bbf\u0bb1\u0bbf\u0baf \u0bae\u0bc1\u0b95\u0bb5\u0bc8\u0baf\u0bbf\u0bb2\u0bcd \u0b87\u0b9f\u0bcd\u0b9f\u0bc1 \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0ba9\u0bcd \u0b95\u0bc0\u0bb4\u0bcd \u0b85\u0ba8\u0bcd\u0ba4\u0bae\u0bcd \u0b85\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b85\u0bae\u0bbf\u0bb4\u0bc1\u0bae\u0bcd \u0bb5\u0b95\u0bc8\u0baf\u0bbf\u0bb2\u0bcd \u0b85\u0bae\u0bbf\u0bb4\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0b95.<br \/>\n\u0baa\u0bc6\u0bb0\u0bbf\u0baf \u0b95\u0bc1\u0b9f\u0bc1\u0bb5\u0bc8\u0baf\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0ba8\u0bc0\u0bb0\u0bcd \u0baa\u0bbe\u0baf\u0bc1\u0bae\u0bbe\u0bb1\u0bc1 T1 \u0bb5\u0bbe\u0baf\u0bbf\u0bb2\u0bc8 \u0ba4\u0bbf\u0bb1\u0b95\u0bcd\u0b95 \u0baa\u0bbf\u0ba9\u0bcd \u0b95\u0bc1\u0b9f\u0bc1\u0bb5\u0bc8\u0baf\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bb5\u0bb3\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0b85\u0bae\u0bc1\u0b95\u0bcd\u0b95\u0bae\u0bcd \u0baa\u0b9f\u0bbf\u0baa\u0bcd\u0baa\u0b9f\u0bbf\u0baf\u0bbe\u0b95 \u0b85\u0ba4\u0bbf\u0b95\u0bb0\u0bbf\u0ba4\u0bcd\u0ba4\u0bc1 \u0bae\u0baf\u0bbf\u0bb0\u0bcd\u0ba4\u0bcd\u0ba4\u0bc1\u0bb3\u0bc8\u0b95\u0bcd \u0b95\u0bc1\u0bb4\u0bbe\u0baf\u0bbf\u0ba9\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0b85\u0bae\u0bbf\u0bb4\u0bcd\u0ba8\u0bcd\u0ba4\u0bc1\u0bb3\u0bcd\u0bb3 \u0b85\u0ba8\u0bcd\u0ba4\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0bb5\u0bb3\u0bbf\u0b95\u0bcd \u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bbf\u0baf\u0bca\u0ba9\u0bcd\u0bb1\u0bc1 \u0b89\u0bb0\u0bc1\u0bb5\u0bbe\u0b95\u0bbf\u00e4\u00e4 \u0bae\u0bc6\u0ba4\u0bc1\u0bb5\u0bbe\u0b95 \u0bb5\u0bb3\u0bbf\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bbf\u0bb4\u0bbf \u0bb5\u0bc6\u0bb3\u0bbf\u0baf\u0bc7\u0bb1\u0bc1\u0bae\u0bcd.<br \/>\n\u0bae\u0bc6\u0bb2\u0bbf\u0bae\u0bbe\u0ba9\u0bbf\u0baf\u0bbf\u0ba9\u0bcd 2 \u0ba4\u0bbf\u0bb0\u0bb5\u0baa\u0bcd \u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0b87\u0b9f\u0bc8\u0baf\u0bbf\u0bb2\u0bbe\u0ba9 \u0b89\u0baf\u0bb0 \u0bb5\u0bbf\u0ba4\u0bcd\u0ba4\u0bbf\u0baf\u0bbe\u0b9a\u0bae\u0bcd \u0baa\u0bc6\u0bb1 \u0baf\u0bc1 \u0baa\u0bc1\u0baf\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0baa\u0bcd \u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bc8 \u0ba8\u0b95\u0bb0\u0bc1\u0bae\u0bcd \u0ba8\u0bc1\u0ba3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0b95\u0bcd \u0b95\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0bae\u0bc2\u0bb2\u0bae\u0bcd \u0b85\u0bb5\u0ba4\u0bbe\u0ba9\u0bbf\u0ba4\u0bcd\u0ba4\u0bb2\u0bcd \u0b85\u0bb3\u0bb5\u0bbf\u0b9f\u0bc8\u0baf\u0bc8\u0baa\u0bcd \u0baa\u0bc6\u0bb1\u0bb2\u0bcd.<br \/>\nB\u00a0\u0baa\u0bc1\u0baf\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0baa\u0bcd \u0baa\u0bbf\u0bb1\u0bc8\u0baf\u0bc1\u0bb0\u0bc1\u0bb5\u0bc8\u0baf\u0bc1\u0bae\u0bcd \u0ba8\u0b95\u0bb0\u0bc1\u0bae\u0bcd \u0ba8\u0bc1\u0ba3\u0bc1\u0b95\u0bcd\u0b95\u0bc1\u0b95\u0bcd \u0b95\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf\u0baf\u0bbf\u0ba9\u0bcd \u0bae\u0bc2\u0bb2\u0bae\u0bcd \u0b85\u0bb5\u0ba4\u0bbe\u0ba9\u0bbf\u0ba4\u0bcd\u0ba4\u0bc1 \u0b85\u0bb3\u0bb5\u0bbf\u0b9f\u0bc8\u0baf\u0bc8\u0baa\u0bcd \u0baa\u0bc6\u0bb1\u0bb2\u0bcd.<\/p>\n<p><a class=\"fancy box\" href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/48.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7410 size-thumbnail\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/02\/48-150x150.png\" alt=\"48\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>h1 = (H4 &#8211; H3)<br \/>\nh2 = (H2 &#8211; H1)<br \/>\nd = [(y1 &#8211; y2) + (x1 &#8211; x2)]\/2<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 \u0ba4\u0bbf\u0bb0\u0bb5\u0bae\u0bca\u0ba9\u0bcd\u0bb1\u0bbf\u0ba9\u0bcd \u0b9a\u0bc1\u0baf\u0bbe\u0ba4\u0bc0\u0ba9 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bcd \u0bb5\u0bb0\u0bc8\u0baf\u0baa\u0bcd\u0baa\u0b9f\u0bcd\u0b9f \u0b93\u0bb0\u0bb2\u0b95\u0bc1 \u0ba8\u0bc0\u0bb3\u0bae\u0bbe\u0ba9 \u0b95\u0bb1\u0bcd\u0baa\u0ba9\u0bc8\u0b95\u0bcd \u0b95\u0bcb\u0b9f\u0bcd\u0b9f\u0bc1\u0b95\u0bcd\u0b95\u0bc1 \u0b9a\u0bc6\u0b99\u0bcd\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bbe\u0b95 \u0b92\u0bb0\u0bc1 \u0baa\u0b95\u0bcd\u0b95\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0ba4\u0bbe\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1\u0ba4\u0bcd \u0ba4\u0bca\u0b9f\u0bb2\u0bbf\u0bb5\u0bbf\u0b9a\u0bc8 \u0b85\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 \u0b86\u0b95\u0bc1\u0bae\u0bcd. &nbsp; T = F\/l \u0b85\u0bb2\u0b95\u0bc1- Nm-1 T = W\/A \u0b85\u0bb2\u0b95\u0bc1- Jm-2 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bc8\u0b95\u0bcd\u0b95\u0bbe\u0ba9 \u0b95\u0bbe\u0bb0\u0ba3\u0bae\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bbf\u0bb2\u0bcd \u0b95\u0bc0\u0bb4\u0bcd\u0ba8\u0bcb\u0b95\u0bcd\u0b95\u0bbf \u0bae\u0b9f\u0bcd\u0b9f\u0bc1\u0bae\u0bc7 \u0b95\u0bb5\u0bb0\u0bcd\u0b9a\u0bcd\u0b9a\u0bbf \u0bb5\u0bbf\u0b9a\u0bc8 \u0ba4\u0bca\u0bb4\u0bbf\u0bb1\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd. \u0b8e\u0ba9\u0bb5\u0bc7 \u0b87\u0ba4\u0ba9\u0bcd \u0b95\u0bbe\u0bb0\u0ba3\u0bae\u0bbe\u0b95 \u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0baa\u0bc1\u0b95 \u0bae\u0bc1\u0baf\u0bb1\u0bcd\u0b9a\u0bbf\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd. \u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bc1\u0bb3\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc8 \u0baa\u0bca\u0bb1\u0bc1\u0ba4\u0bcd\u0ba4\u0bae\u0b9f\u0bcd\u0b9f\u0bbf\u0bb2\u0bcd [&hellip;]<\/p>\n","protected":false},"author":842,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[160,36],"tags":[],"class_list":["post-7353","post","type-post","status-publish","format-standard","hentry","category-160","category-36"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 - Learning &amp; Education Portal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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\u0b9a\u0bc6\u0b99\u0bcd\u0b95\u0bc1\u0ba4\u0bcd\u0ba4\u0bbe\u0b95 \u0b92\u0bb0\u0bc1 \u0baa\u0b95\u0bcd\u0b95\u0ba4\u0bcd\u0ba4\u0bbf\u0bb2\u0bcd \u0ba4\u0bbe\u0b95\u0bcd\u0b95\u0bc1\u0bae\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1\u0ba4\u0bcd \u0ba4\u0bca\u0b9f\u0bb2\u0bbf\u0bb5\u0bbf\u0b9a\u0bc8 \u0b85\u0ba4\u0bcd\u0ba4\u0bbf\u0bb0\u0bb5\u0ba4\u0bcd\u0ba4\u0bbf\u0ba9\u0bcd \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb4\u0bc1\u0bb5\u0bc8 \u0b86\u0b95\u0bc1\u0bae\u0bcd. &nbsp; T = F\/l \u0b85\u0bb2\u0b95\u0bc1- Nm-1 T = W\/A \u0b85\u0bb2\u0b95\u0bc1- Jm-2 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bc8\u0b95\u0bcd\u0b95\u0bbe\u0ba9 \u0b95\u0bbe\u0bb0\u0ba3\u0bae\u0bcd \u0ba4\u0bbf\u0bb0\u0bb5 \u0bae\u0bc7\u0bb1\u0bcd\u0baa\u0bb0\u0baa\u0bcd\u0baa\u0bbf\u0bb2\u0bcd \u0b89\u0bb3\u0bcd\u0bb3 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1\u0b95\u0bb3\u0bbf\u0bb2\u0bcd 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