Assertion (A): | If the same mass is drawn into making of a solid sphere and a hollow sphere, the moment of inertia about the diameter of a hollow body is greater than a solid body. |
Reason (R): | The moment of inertia depends on the mass distribution from the axis of rotation and in a hollow sphere more of the mass is further away from the axis of rotation. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | When a body rotates in a circle around any axis, all its particles move along a circle in different radii but with the same angular velocity. |
Reason (R): | The moment of inertia is a vector quantity. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |