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JEE Main2005PhysicsRotational MotionActual

The moment of inertia of a uniform semicircular disc of mass M and radius r about a line perpendicular to the plane of the disc through the centre is

Options

  1. A1 4 Mr ^2
  2. B2 5 Mr ^2
  3. CMr ^2
  4. D1 2 Mr ^2

Correct answer

D. 1 2 Mr ^2

Step-by-step solution

2 I =2 M R ^2 2 I = MR ^2 2

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