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JEE MAIN 2019
11-01-2019 S2
Question
A circular disc $D_1$ of mass $M$ and radius $R$ has two identical discs $D_2$ and $D_3$ of the same mass $M$ and radius $R$ attached rigidly at its opposite ends (see figure). The moment of inertia of the system about the axis $\mathrm{OO}^{\prime}$, passing through the centre of $\mathrm{D}_1$ as shown in the figure, will be:
Select the correct option:
A
$3 \mathrm{MR}^2$
B
$\frac{4}{5} M R^2$
C
$\mathrm{MR}^2$
D
$\frac{2}{3} M R^2$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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