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:
O Energy=4VT(1/r−1/R) is released
O Energy=3VT(1/r+1/R) is released
O Energy=3VT(1/r−1/R) is released
O Energy is neither released nor absorbed