A rigid lamina is rotating about an axis passing perpendicular to its plane through point $O$ as shown in the figure.
The angular velocity of point $B$ w.r.t $A$ is

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In a rigid body, angular velocity of any point w.r.t any other point is constant and is equal to the angular velocity of the rigid body.

In a rigid body, angular velocity of any point w.r.t any other point is not constant and is equal to the angular velocity of the rigid body.

In a rigid body, angular velocity of any point w.r.t any other point is constant and is not equal to the angular velocity of the rigid body.

In a rigid body, angular velocity of any point w.r.t any other point is not constant and is unequal to the angular velocity of the rigid body.

answer is A.

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Detailed Solution

In a rigid body, angular velocity of any point w.r.t any other point is constant and is equal to the angular velocity of the rigid body.

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