MHT CET 2023 Physics question
Two sphere each of mass 'M' and radius are connected at the ends of massless rod of length '2R'. What will be the moment of inertia of the system about an axis passing through center of one of the spheres and perpendicular to the rod?
Answer: (D)
Solution
Moment of inertia of a solid sphere about its diameter: , with : . The axis passes through the centre of sphere 1 (perpendicular to the rod), so sphere 1 contributes . Sphere 2 is at distance from the
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