A bob of mass m attached to an inextensible string of length I is suspended from a vertical support. The bob rotates in a horizontal circle with a angular speed ωrad/s about the vertical. About the point of suspension JEE (Main) 2014] (a) Angular momentum is conserved (b) Angular momentum c hanges in magnitude but not in direction (c) Angular momentum changes in direction but not in magnitude (d) Angular momentum changes both in direction and magnitude
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