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The surface tension of soap solution is 0.03 N/m. The work done in blowing to form a soap bubble of surface area 40 c`m^2` is:
A. |
`1.2xx10^-4 J` |
B. |
`2.4xx10^-4 J` |
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C. |
`12xx10^-4 J` |
D. |
`24xx10^-4 J` |