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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

Two rings of radius and , made up of the same material, have the ratio of moment of inertia about an axis passing through centre as 1:8. The value of is

Answer: (A)

Solution

For the same material (same , linear mass density), , so , i.e.

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Question ID VK-158480