Physics · Rotational Motion
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Moment of inertia of a circular disc of mass M and radius R about X, Y axes (passing through its plane) and Z-axis which is perpendicular to its plane were found to be Ix, Iy and Iz, respectively. The respective radii of gyration about all the three axes will be the same. Reason R: A rigid body making rotational motion has fixed mass and shape. In the light of the above statements, choose the most appropriate answer from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both A and R are correct and R is the correct explanation of A
- 2A is correct but R is not correct
- 3A is not correct but R is correct✓
- 4Both A and R are correct but R is not the correct explanation of A
Correct answer
A is not correct but R is correct
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