1.

The work done in forming a soap film of size 10cmx10cm will be, if the surface tension of soap solution is 3 xx 10^(-2) N/m

Answer»

`3 xx 10^(-4) J`
`3 xx 10^(-2)J`
`6 xx 10^(-4) J`
`6 xx 10^(-2) J`

ANSWER :C


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