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The work done is increasing the size of ...

The work done is increasing the size of a soap film from 10 cm `xx` 6 cm to 10 cm `xx` 11 cm is ` 3 xx 10^(-4)` joule. The surface tension of the film is

A

`1.5xx10^(-2)Nm^(-1)`

B

`3.0xx10^(-2)Nm^(-1)`

C

`6.0xx10^(-2)Nm^(-1)`

D

`11.0xx10^(-2)Nm^(-1)`

Text Solution

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The correct Answer is:
B
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