The terminal velocity $\left( v _{ t }\right)$ of the spherical rain drop depends on the radius ( $r$ ) of the spherical rain drop as
$r^{1 / 2}$
$r$
$r^{2}$
$r ^{3}$
Write the equation of terminal velocity.
The terminal velocity of a small sphere of radius $a$ in a viscous liquid is proportional to
Write one of the practical use of viscosity.
A liquid drop of mass $m$ and radius $r$ is falling from great height. Its velocity is proportional to ............
A small spherical ball of radius $r$, falling through a viscous medium of negligible density has terminal velocity ' $v$ '. Another ball of the same mass but of radius $2 r$, falling through the same viscous medium will have terminal velocity: