A water drop of radius $1\,\mu m$ falls in a situation where the effect of buoyant force is negligible. Coefficient of viscosity of air is $1.8 \times 10^{-5}\,Nsm ^{-2}$ and its density is negligible as compared to that of water $10^{6}\,gm ^{-3}$. Terminal velocity of the water drop is________ $\times 10^{-6}\,ms ^{-1}$

(Take acceleration due to gravity $=10\,ms ^{-2}$ )

How coefficient of liquid and gas depend on temperature ?

A small drop of water falls from rest through a large height $h$ in air; the final velocity is

Two drops of the same radius are falling through air with a steady velocity of $5 cm per sec.$  If the two drops coalesce, the terminal velocity would be

Which of the following graphs best represents the motion of a raindrop?

The terminal velocity $\left( v _{ t }\right)$ of the spherical rain drop depends on the radius ( $r$ ) of the spherical rain drop as