Consider two uniform | RIGID BODY DYNAMICS | JEE-MAIN 2020

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JEE MAIN 2020

04.09.20_S2

Question

Consider two uniform discs of the same thickness and different radii $R_1=R$ and $R_2=\alpha R$ made of the same material. If the ratio of their moments of inertia $I_1$ and $I_2$, respectively, about their axes is $l_1: l_2=1: 16$ then the value of $\alpha$ is

Select the correct option:

A

2

B

4

C

$2 \sqrt{2}$

D

$\sqrt{2}$

✓ Correct! Well done.

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