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Question 30318
JEE Physics · Medium

Rigid Body Dynamics: MOI — Sphere MCQ

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MOI — SphereMediumQuestion 30318

Question

The moment of inertia of a solid sphere (mass M, radius R) about a diameter is:
  1. A
    MR²
  2. B
    2MR²/3
  3. C
    2MR²/5
    Correct
  4. D
    MR²/2

Correct answer

2MR²/5

Explanation

I_solid sphere = (2/5)MR². For a hollow sphere: I = (2/3)MR².

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