If n drops, each of capacitance C, coalesce to form a single big drop, then the ratio of the energy stored in big drop to that in each small drop will be

We know that, capacitance a radius .If r is the radius of each drop, then the radius fi of big drop will be R=r×(n)1/3We also know that, energy ∞ capacitance ∴  Energy stored in big drop  Energy stored in small drop =n1/3