A certain number of spherical drops of a...

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

Enetgy =4VT` (1/r-1/R)` is released

B

Energy =3VT`(1/r+1/R)` is absorbed

C

Energy =3VT`(1/-r1/R)` is released

D

Energy is neither released nor absorbed

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The correct Answer is:

C

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