NEET2022Physics-Rotational Motion
NEET 2022 Physics Radius of Gyration MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is:
A
4 : 1
B
1 : √2
C
2 : 1
D
√2 : 1
Correct Answer
Option B
Detailed Explanation
For a disc, the radius of gyration about its center is R/√2 and about its diameter is R/2, giving a ratio of 1 : √2.
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