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The surface area of a soap-bubble is 2.0...

The surface area of a soap-bubble is `2.0xx10^(-3) m^(2).` How much work will be done in blowing the bubble twice its surface area? Surface tension of soap solution `=3.0 xx 10^(-2) "Nm"^(-2).`

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The correct Answer is:
`(1.2xx10^(-4)J)`
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