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One solid sphere A and another hollow sphere B are of same mass and same outer radii. Their moment of inertia about their diameters are respectively I _ A and I _ B such that

Options

  1. AI_A=I_B
  2. BI_A>I_B
  3. CI_A < I_B
  4. Dyes, 45^ I_A / I_B=d_A / d_B Where d_A and d_B are their densities.

Correct answer

C. I_A < I_B

Step-by-step solution

Moment of inertia of a uniform density solid sphere, A= 2 5 M R^2 Since M and R are same, I_A < I_B .

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