# Angular Momentum Observation!

A thin rod of mass '$$m$$' and length '$$l$$' is rotating in horizontal plane with constant angular velocity about a vertical axis $$AA'$$. If there are three points $$O, 1$$ & $$2$$ on the axis as shown in figure, then choose the correct statement(s) :-

(A) Angular momentum about the points $$O, 1$$ & $$2$$ are same.

(B) Component of angular momentum along axis $$AA'$$ is same for all the points $$O, 1$$ & $$2$$.

(C) Net torque about point $$O, 1$$ & $$2$$ are same.

(D) Angular momentum about point $$1$$ is not constant.

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