STANDARDPhysics-Rotational Motion
STANDARD Physics Moment of Inertia MCQ Question
Type: MCQ-conceptual-Medium
The moment of inertia of a solid sphere of mass M and radius R about a tangent to the sphere is
A
2/5 MR²
B
6/5 MR²
C
4/5 MR²
D
7/5 MR²
Correct Answer
Option D
Detailed Explanation
The moment of inertia of the solid sphere about any diameter is (2/5)MR². Using the theorem of parallel axes, the moment of inertia about a tangent is I_tangent = I_diameter + MR² = (2/5)MR² + MR² = (7/5)MR².
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