Two mercury drops (each of radius r) mer...

Two mercury drops (each of radius r) merge to form a bigger drop. The surface energy of the bigger drop, if `T` is the surface tension is

A

`2 ^(5/3) pir^2T`

B

`4 pi^2T`

C

`2 pir^2T`

D

`2^(8/3) pir^2T`

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The correct Answer is:

D

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