Answer: ML²/3.
- A ML²/3
- B ML²/12
- C ML²/4
- D ML²/6
Correct answer: A. ML²/3
Explanation: About one end, I = ML²/3. About the centre, I = ML²/12 (use parallel axis theorem to verify).
Torque about axis O equals the force F multiplied by the perpendicular distance r⊥ from the axis to the line of action of the force, producing rotation.
Concept context
Moment of inertia, torque, angular momentum, rolling motion. Very high JEE weightage.
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