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Question

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:

A
Energy=4VT(1r1R) is released
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B
Energy=3VT(1r+1R) is released
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C
Energy=3VT(1r1R) is released
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D
Energy is neither released nor absorbed
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