JEE Main 201912 Apr, Evening shiftPhysicsMediumProperties of Solids and Liquids184× since 2002
A solid sphere, of radius R acquires a terminal velocity v₁ when falling (due to gravity) through a viscous
fluid having a coefficient of viscosity . The sphere is broken into 27 identical solid spheres. If each of these
spheres acquires a terminal velocity, v₂, when falling through the same fluid, the ratio (v₁/v₂) equals :