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What is the potential energy of a soap f...

What is the potential energy of a soap film formed on a frame of area `3 xx10^(-3)m^(2)` ? [ The surface tension of soap solution is `30 xx 10^(-3)` N/m ]

A

`1.2 xx10^(-4)` J

B

`1.5 xx10^(-4)`J

C

`1.8 xx10^(-4)`J

D

`2.4 xx10^(-4)`J

Text Solution

Verified by Experts

The correct Answer is:
C
P.E = Work done = 2TA
` = 2 xx 30 xx 10^(-3) xx 3xx 10^(-3) = 1.8 xx 10^(-4)` J
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