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Radius of a soap bubble is 'r ', surface...

Radius of a soap bubble is 'r ', surface tension of soap solution is T. Then without increasing the temperature, how much energy will be needed to double its radius

A

`4pir^(2)T`

B

`2pir^(2)T`

C

`12pir^(2)T`

D

`24 pir^(2)T`

Text Solution

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The correct Answer is:
D
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