Physics - Fluid Question with Solution | TestHub

Two solid spheres $S_1$ and $S_2$ of same uniform density fall from rest under gravity in a viscous medium and after some time, reach terminal velocities $v_1$ and $v_2$ respectively. If ratio of masses $\frac{m_1}{m_2}=8$, then $\frac{v_1}{v_2}$ will be equal to