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In Millikan's oil drop experiment, what ...

In Millikan's oil drop experiment, what is the terminal speed of a speed of a drop of radius `2.0 xx 10^(5)m` and density `1.2xx10^(3)m^(-3)`? Take the viscosity of air at the temperature of the experimental to be `1.8xx10^(-5)Nsm^(2)`. How much is the viscous force on the drop at that speed? Neglect buoyancy of the drop due to air.

Text Solution

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The correct Answer is:
`5.807 cm s^(-1), 3.94 xx 10^(-10)N`
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