Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousMedium3 minCT47
PhysicsMediumsingle choice

The figure shows a uniform disc of mass m and radius a. The moment of inertia about an axis xy is I. The moment of inertia about an axis passing through O and perpendicular to the plane of the disc will be:-

CT47 diagram

Options:

Answer:
B
Solution:

Apply conservation of momentum/angular momentum and the rigid-body constraint.

Simplification gives the marked answer B.

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
⏱ 3mℹ️ Source: CT47

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