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The surface tension of a soap solution i...

The surface tension of a soap solution is `2xx10^(-2) N//m`. To blow a bubble of radius 1cm, the work done is

A

`4 pi xx10^(-6) J`

B

`8pi xx10^(-6) J`

C

`12 pi xx10^(-6) J`

D

`16 pi xx10^(-6) J`

Text Solution

Verified by Experts

The correct Answer is:
D
Work done, `W=8pi R^(2)T`
`=8xxpi xx(10^(-2))^(2)xx2xx10^(-2)=16 pi xx10^(-6)` J
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