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Physics · 2018
JEE Main 2018 · 2018-04-08 Offline · Q7
From a uniform circular disc of radius R and mass 9 M, a small disc of radius R/3 is removed as shown in the figure. The moment of inertia of the…
From a uniform circular disc of radius R and mass $\displaystyle 9$ M, a small disc of radius $\displaystyle \frac{R}{3}$ is removed as shown in the figure. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through centre of disc is :
Official answer
(1)
$\displaystyle 4 \mathrm{MR}^2$
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JEE Main 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.