JEE Main & Advanced
Physics
Rotational Motion
JEE PYQ-Rotational Motion
question_answer
Let the moment of inertia of a hollow cylinder of length 30 cm (inner radius 10 cm and outer radius 20 cm), about its axis be I. The radius of a thin cylinder of the same mass such that its moment of inertia about its axis is also J, is- [JEE Main 12-Jan-2019 Morning]