The moment of inertia of a solid sphere of mass 'm' having radius 'r' about a line passing through its center is:
Correct answer: B. 2/5 mr2
- A. 5/2 mr2
- B. 2/5 mr2
- C. 1/2 mr2
- D. 1/3 mr2
- E. mr2
Explanation
The moment of inertia of a solid sphere about a line passing through its center is given by the formula:I = (2/5)mr²where m is the mass of the sphere and r is its radius.
This question appeared on the NUMS 2019 (cancelled sitting) paper, which you can sit online with every answer explained.
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