A small spherical ball of radius \(r\), falling through a viscous medium of negligible density has terminal velocity ' \…

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:

[JEE Main 2024, 31 Jan (Shift 2)]