JEE Main 2024 Physics question
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 2r, falling through the same viscous medium will have terminal velocity
Answer: (B)
Solution
Terminal velocity: mg = 6πηrv, so v ∝ 1/r for a given mass. For radius 2r, v′ = v/2.