31. What is the change in the angular momentum of a system as per the Law of Conservation of Angular momentum, if the total external torque acting is zero? A.Remains constant B.Becomes zero C.Increases exponentially D.None of the above
Option A Solution: If net external torque on a system is zero, then the angular momentum of the system can not change. If net external torque on a system is zero, then the angular momentum of the system remains same.