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JEE Main20252 Apr 2025Evening ShiftPhysicsRotational MotionActual

The moment of inertia of a circular ring of mass M and diameter r about a tangential axis lying in the plane of the ring is :

Options

  1. A1 2 Mr ^2
  2. B3 8 Mr ^2
  3. C3 2 Mr ^2
  4. D2 Mr ^2

Correct answer

B. 3 8 Mr ^2

Step-by-step solution

Diameter is given as R. aligned & Radius = R / 2 & I _ tan gent = 3 2 ~m ( R 2 )^2= 3 8 mR ^2 aligned

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