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MHT CET Physics question

PhysicsMechanical Properties of FluidsMHT CET

A frame made of metallic wire enclosing a surface area A is covered with a soap film. If the area of the frame of metallic wire is reduced by 25%, the energy of the soap film will be changed by

Answer: (D)

Solution

Surface energy is proportional to the area, so reducing the area by 25% changes the energy by 25%; 75%

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Question ID VK-062103