Spherical balls of radius R are falling in a viscous fluid of viscosity with a velocity v. The retarding viscous force acting on the spherical ball is

JEE Main 2004 Physics question

Spherical balls of radius are falling in a viscous fluid of viscosity with a velocity . The retarding viscous force acting on the spherical ball is

Answer: (2)

By Stokes' law the viscous drag on a sphere is , directly proportional to both

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Question ID VK-038309