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MHT CET Physics question

PhysicsMechanical Properties of FluidsMHT CET

If the surface tension of a soap solutions is N/m, then the work done in forming a soap film of 20 cm × 5 cm will be [MHT-CET 2022]

Answer: (C)

Solution

A soap film has two surfaces, so 10^{-2}$×2×(0.2×0.05) =

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Question ID VK-062240