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![[Post New]](/templates/default/images/icon_minipost_new.gif) 8 Jan 2008 22:43:56 IST
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surface energy of bubble(radius=r)=4x pi x r^2 x S
surface energy of bubble(radius=2r)=4 x pi x (2r)^2 x S
difference gives the work done.....
U=(change in area)x S
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There is always enough time to live...... |
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