NEET2013Physics-Rotational Motion
NEET 2013 Physics Moment of Inertia MCQ Question
Type: MCQ-conceptual-Easy-Class 11
The ratio of radii of gyration of a circular ring and a circular disc, of the same mass and radius, about an axis passing through their centres and perpendicular to their planes are:
A
1 : √2
B
3 : 2
C
2 : 1
D
√2 : 1
Correct Answer
Option A
Detailed Explanation
The radius of gyration for a ring is R and for a disc is R/√2. Thus, the ratio is 1 : √2.
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