Given below are two statements : one is labeled as Assertion A and the other is labeled 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 :
Select the correct option:
A
Both A and R are correct but R is NOT the correct explanation of A.
B
A is not correct but R is correct
C
A is correct but R is not correct.
D
Both A and R are correct and R is the correct explanation of A.
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