Properties Of Solids And Liquids Question 362

Question: Radius of a soap bubble is increased from R to 2R work done in this process in terms of surface tension is [BHU 2003, RPET 2001; CPMT 2004]

Options:

A) 24πR2S

B)48πR2S

C) 12πR2S

D)36πR2S

Show Answer

Answer:

Correct Answer: A

Solution:

W=8πS(R22R12)=8πS[(2R)2R2]=24πR2S



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