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A rain drop of radius 0.3 mm has a termi...

A rain drop of radius 0.3 mm has a terminal velocity in air 1m/s. the viscosity of air is `18xx10^(-5)` poise. The viscous force on it is-

A

`101.73xx10^(-4)` dyne

B

`101.73xx10^(-5)` dyne

C

`16.95xx10^(-5)` dyne

D

`16.95xx10^(-4)` dyne

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The correct Answer is:
A
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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 1 (Fluid Statics)
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  17. The velocity of falling rain drop attain limited value bacause of

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  18. The rate of flow of liquid through a capillary tube in an experiment t...

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  19. A copper ball of radius r travels with a uniform speed v in a viscous ...

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