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[" 13.A certain number of spherical drop...

[" 13.A certain number of spherical drops of a liquid of radius "],[r" coalesce to form a single drop of radius "R" and "],[" volume "V" .If "T" is the surface tension of the liquid,then "],[[" (1) Energy "=4VT((1)/(r)+(1)/(R))" is released "],[" (2) Energy "=3VT((1)/(r)+(1)/(R))," is released "],[" (4) Energy is neither released nor absorbed "]]

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