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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Four particles each of mass 'M' are placed at corners of square of side 'L'. The radius of gyration of the system about an axis perpendicular to the square and passing through its centre is [MHT-CET 2021, MHT-CET 2021]

Answer: (A)

Solution

Each particle is at distance from the axis, so giving

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Question ID VK-040937