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

A rain drop of radius 0.3 mm has a terminal velocity I air 1 `ms^(-1)`.The viscosity of air is `18xx10^(-5)` poise.Find the viscous force on the rain drops.

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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