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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A square frame ABCD is formed by four identical rods each of mass and length . This frame is in XY-plane such that side AB coincides with X-axis and side AD along Y-axis. The moment of inertia of the frame about X-axis is [MHTCET 2018]

Answer: (A)

Solution

Rod AB lies on the axis (0); rod CD is parallel at distance l: ml²; rods AD and BC are perpendicular to the axis with one end

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Question ID VK-040789