JEE Main 2019 — Rotational Motion Question with Solution
From: JEE Main 2019 (Online) 10th April Evening Slot
Question
A solid sphere of mass M and radius R is divided into two unequal parts. The first part has a mass of
and is converted into a uniform disc of radius 2R. The second part is converted into a uniform solid sphere.
Let I1 be the moment of inertia of the disc about its axis and I2 be the moment of inertia of the new sphere
about its axis. The ratio I1/I2 is given by :
Choose an option
Show full solutionCorrect option: B
Correct answer
B140
Step-by-step explanation
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This is a previous-year question from JEE Main 2019, 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.