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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Two rings are placed with common centres such that their planes are perpendicular. Two more rings are placed concentric with the previous two rings such that their planes make with the planes of the two given rings. Find the moment of inertia of the system about an axis passing through the diameter of one of the rings

Answer: (C)

Solution

For identical rings (mass , radius ) with a common diameter as the axis, the planes of all four rings contain that axis, so each contributes and

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Question ID VK-040629