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MHT CET Physics question

PhysicsMechanical Properties of FluidsMHT CET

A certain number of spherical liquid drops of radius 'r' coalesce to form a single drop of radius 'R' and volume 'V'. If 'T' is the surface tension of the liquid, which one of the following statements is true for the energy (E) in the process? [MHT-CET 2019]

Answer: (C)

Solution

With , , and since the

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Question ID VK-062317