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MHT CET 2023 Physics question

PhysicsMechanical Properties of FluidsMHT CET 2023

A metal sphere of mass 'm' and density '' falls with terminal velocity through a container containing liquid. The density of liquid is ''. The viscous force acting on the sphere is

Answer: (C)

Solution

At terminal velocity the net force is zero: weight = buoyant force + viscous force, i.e. . Volume of the sphere , so the buoyant force is . Therefore $ = mg - mg =

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Question ID VK-095132