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.