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MHT CET Physics question

PhysicsMechanical Properties of FluidsMHT CET

Due to surface tension the excess pressure inside a smaller drop is 9 units. If 27 smaller drops combine then the excess pressure inside the bigger drop is [MHT-CET 2022]

Answer: (C)

Solution

27 drops merge to a drop of radius ; excess pressure is inversely proportional to radius, so

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Question ID VK-062250