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MHT CET Physics question

PhysicsMechanical Properties of FluidsMHT CET

A small sphere of radius 'r' falls from rest in a viscous liquid. Due to friction heat is produced. The rate of production of heat is proportional to [MHT-CET 2022]

Answer: (D)

Solution

At terminal speed the heat rate equals the power with , so

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Question ID VK-062245