JEE Main 2018 — Rotational Motion Question with Solution
From: JEE Main 2018 (Online) 16th April Morning Slot
Question
A thin circular disk is in the xy plane as shown in the figure. The ratio of its moment of inertia about z and z' axes will be :
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: A
Correct answer
A1 : 3
Step-by-step explanation
As we know,
moment of inertia about z axis
and moment of inertia about z'
= =
moment of inertia about z axis
and moment of inertia about z'
= =
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This is a previous-year question from JEE Main 2018, 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.