Question
Two disc of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio 1:3. The moment of inertia of these disc about the respective axes passing through their center and perpendicular to their planes will be in the ratio
- 1:3
- 9:1
- 3:1
- 1:9
The correct answer is: 3:1
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