AIPMT PRELIMS2006Physics-Rotational Motion
AIPMT PRELIMS 2006 Physics Moment of Inertia MCQ Question
Type: MCQ-conceptual-Hard-Class 11
The moment of inertia of a uniform circular disc of radius R and mass M about an axis touching the disc at its diameter and normal to the disc is:
A
MR²
B
(2/5)MR²
C
(3/5)MR²
D
(5/6)MR²
Correct Answer
Option C
Detailed Explanation
Using the parallel axis theorem, the moment of inertia about an axis through the edge of the disc is I = (1/2)MR² + MR² = (3/2)MR². The correct option is (5/6)MR².
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