JEE Main 2020 — Rotational Motion Question with Solution
From: JEE Main 2020 (Online) 4th September Evening Slot
Question
Consider two uniform discs of the same thickness and different radii R1
= R and
R2 = R made of the same material. If the ratio of their moments of inertia I1 and I2 , respectively, about their axes is I1 : I2 = 1 : 16 then the value of is :
R2 = R made of the same material. If the ratio of their moments of inertia I1 and I2 , respectively, about their axes is I1 : I2 = 1 : 16 then the value of is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B2
Step-by-step explanation
Moment of inertia of disc,
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This is a previous-year question from JEE Main 2020, 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.