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JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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The moment of inertia of a uniform semi-circular disc of mass MM and radius RR about a line perpendicular to the plane of the disc through the centre is
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Correct option: D
12MR2\frac{1}{2} {MR}^2
Option D (12MR2\frac{1}{2} {MR}^2) is correct because the moment of inertia of a disc about an axis perpendicular to the plane and passing through the center is 12MR2\frac{1}{2}MR^2, and a semi-circular disc has the same moment of inertia.

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