JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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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

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Correct option: D

24\,\pi {r^2}T

Option D (

24\,\pi {r^2}T

) is correct because it's the energy needed to double the radius of a soap bubble, considering both inner and outer surfaces.

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