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MHT CET 2022 Physics question

PhysicsMechanical Properties of FluidsMHT CET 2022

A liquid drop of density '' is floating half immersed in a liquid of density 'd'. Diameter of the liquid drop is (, g = acceleration due to gravity, T = surface tension)

Answer: (C)

Solution

Let the drop have radius . Forces on the drop: weight downward ; upthrust (half the volume is immersed); the surface tension force along the circle of contact, of length , acts vertically upward and equals .

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Question ID VK-093640