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Home  >>  AIMS  >>  Class11  >>  Physics  >>  Units and Measurement
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A viscous force F, is acting on a spherical body of radius r. The body is falling freely in a liquid medium of viscosity $ \eta $, with a velocity v. The force experienced by the body is expressed as

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F = krnv
Hence (C) is the correct answer.
answered Jun 3, 2014 by thanvigandhi_1

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