Water drop 2cm diameter get divided into...

Water drop 2cm diameter get divided into 64 droplets where surface tension is `0.075 N/m`. Find gain in surface energy.

A

`1.9 x 10^-3`

B

`1.5 x 10^-3`

C

`3.2 x 10^-3`

D

`2.8 x 10^-4`

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