| A thin circular plate of mass M and radius R has its density varying as \[\rho (r)={{\rho }_{0}}r\]with \[{{\rho }_{0}}\] as constant and r is the distance from its centre. |
| The moment of Inertia of the circular plate about an axis perpendicular to the plate and passing through its edge is\[I=aM{{R}^{2}}.\] The value of the coefficient a is: [JEE Main 8-4-2019 Morning] |
A) \[\frac{3}{2}\]
B) \[\frac{1}{2}\]
C) \[\frac{3}{5}\]
D) \[\frac{8}{5}\]
Correct Answer: D
Solution :
[d] |
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by parallel axis theorem |
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