JEE Main 2023 — Rotational Motion Question with Solution
From: JEE Main 2023 (Online) 30th January Morning Shift
Question
A thin uniform rod of length , cross sectional area '' and density '' is rotated about an axis passing through the centre and perpendicular to its length with angular velocity . If value of in terms of its rotational kinetic energy is then value of is ______________.
Enter your answer
Show full solutionCorrect answer: 3
Step-by-step explanation
Kinetic energy of rod
or
So,
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Rotational Motion chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2023, covering the Rotational Motion chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.