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MHT CET 2023 Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET 2023

If 'I' is moment of inertia of a thin circular disc about an axis passing through the tangent of the disc and in the plane of disc. The moment of inertia of same circular disc about an axis perpendicular to plane and passing through its center is

Answer: (B)

Solution

For a disc of mass and radius : about a diameter . By the parallel axis theorem, about a tangent in the plane of the disc, . About the axis through the centre perpendicular to the plane, . Therefore

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Question ID VK-095278