JEE Main 2022 · 29 Jun · Shift 2, Physics question 52

A small spherical ball of radius 0.1 mm and density $10^4$ kg m$^{-3}$ falls freely under gravity through a distance $h$ before entering a tank of water. If, after entering the water the velocity of ball does not change and it continue to fall with same constant velocity inside water, then the value of $h$ will be ______ m

(Given $g=10$ ms$^{-2}$, viscosity of water $=1.0\times10^{-5}$ N-sm$^{-2}$).