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  5. Systems Of Particles & Rotational Motion / कणों के निकाय तथा घूर्णी गति

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
    A person is standing on a rotating table with metal spheres in his hands. If he withdraws his hands to his chest, what will be the effect on his angular velocity?                              

    Answer:

                    When the person withdraws his hands to his chest, his moment of inertia decreases. No external torque is acting on the system. So to conserve angular momentum, the angular velocity increases.


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