Question

what is the principal of conservation of angular momentum ?? ​

Answer 1

The law of conversation of angular momentum states that when no external torque acts on the object, no change of angular momentum will occur.

Answer 2

Answer:

Law of Conservation of Angular Momentum

Any of the individual angular momenta can change as long as their sum remains constant. This law is analogous to linear momentum being conserved when the external force on a system is zero.