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If T is the surface tension of soap solu...

If T is the surface tension of soap solution, the amount of work done in blowing a soap bubble from a diameter D to 2D is

A

`2pi D^2 T`

B

`4pi D^2 T`

C

`6pi D^2 T`

D

`8pi D^2 T`

Text Solution

Verified by Experts

The correct Answer is:
C
`W=8piT[R_2^2-R_1^2]`
`W =8piT[((2D)/(2))^2 -(D/2)^2]`
`S=8piT[D^2-D^2/4]=8piT xx(3D^2)/4`
`W = 6piTD^2`
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