In Millikan's oil drop experiment what is the terminal speed of an unchanged drop of radius 20xx10^-5m and density 1.2xx10^3 kg. m^-3. Take the viscosity of air at the temperature of the experiment to be 1.8xx10^-5Pa. s. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the drop due to air.

In Millikan's oil drop experiment what is the terminal speed of an unc

1.	In Millikan's oil drop experiment what is the terminal speed of an unchanged drop of radius 20xx10^-5m and density 1.2xx10^3 kg. m^-3. Take the viscosity of air at the temperature of the experiment to be 1.8xx10^-5Pa. s. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the drop due to air.
Answer» SOLUTION :`5.8cm. S^-1, 3.9xx10^(-10)N`