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MHT CET2010PhysicsRotational Motion

Moment of inertia of a disc about a diameter is I . Find the moment of inertia of disc about an axis perpendicular to its plane and passing through its rim?

Options

  1. A6 I
  2. B4 I
  3. C2 I
  4. D8 I

Correct answer

A. 6 I

Step-by-step solution

Moment of inertia of a disc about a diameter is 1 4 M R²=I (given) M R²=4 I Now, required moment of inertia = 3 2 M R² = 3 2 (4 I)=6 I

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