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Air is pushed inot a soap bubble of radi...

Air is pushed inot a soap bubble of radius r to duble its radius. If the surface tension of the soap solution is S, the work done in the process is

A

`24piR^2S`

B

`48piR^2S`

C

`12piR^2S`

D

`36piR^2s`

Text Solution

Verified by Experts

The correct Answer is:
A
`W=8piS(R_2^2-R_1^2)=8piS[(2R)^2-R^2]=24piR^2S`
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