11th Class Physics Systems Of Particles & Rotational Motion / कणों के निकाय तथा घूर्णी गति Question Bank Systems Of Particles & Rotational Motion Conceptual Problems

  • question_answer
    If no external torque acts on a body, will its angular velocity remain constant? Give reason.

    Answer:

                    When no external torque acts on a body, its angular momentum remains constant. But \[L=I\omega \] Clearly, the angular velocity \[\omega \] will remain constant only so long as the moment of inertia \[I\] of the body remains constant.


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