Question:

Two mercury drop (each of radius r) merge to form a bigger drop. If T is the surface tension, the surface energy of biggest drop is

Options :

  • (a) 2^5/3 πr²T
  • (b) 4πr²T
  • (c) 2πr²T
  • (d) 2^8/3 πr²T

Answer :

(d) 2^8/3 πr²T

Answer Steps :

Step 1

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