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The work done in forming a soap film of ...

The work done in forming a soap film of size `10 cm xx10 cm` will be if the surface tension of soap solution is `3xx10^-2 N//m`:

A

`3xx4^-4` joule

B

`3xx10^-3` joule

C

`6xx10^-4` joule

D

`6xx10^-3` joule

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