In Millikan's oil drop experiment, what is viscous force acting on an uncharged drop of radius 2.0 … 10^…5 m and density 1.2 … 10³ kgm^…3 ? Take viscosity of liquid = 1.8 … 10^…5 Nsm^…2. (Neglect buoyancy due to air).

Option B. Viscous force = Weight

Properties of Matter

JEE Main 2021 · 27 Aug, Morning shift · Q7907

PhysicsEasy148×since 2002Q7907

In Millikan's oil drop experiment, what is viscous force acting on an uncharged drop of radius 2.0

\times

10^

-

5 m and density 1.2

\times

10³ kgm^

-

3 ? Take viscosity of liquid = 1.8

\times

10^

-

5 Nsm^

-

2. (Neglect buoyancy due to air).