365650 Assertion :
A girl sits on a rolling chair, when she stretches her arms horizontally, her speed is reduced.
Reason :
Principle of conservation of angular momentum is applicable in this situation.

365651 A small part of the rim of a fly wheel breaks off while it is rotating at a constant angular speed. Then its radius of gyration will

365652 A child is standing with his arms outstretched at the centre of a turntable that is rotating about its central axis with an angular speed \(\omega_{0}\). Now, the child folds his hands back so that moment of inertia becomes 3 times the initial value. The new angular speed is

365653 A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere is increased keeping its mass same. Which of the following physical quantities would remain constant for the sphere?

365650 Assertion :
A girl sits on a rolling chair, when she stretches her arms horizontally, her speed is reduced.
Reason :
Principle of conservation of angular momentum is applicable in this situation.

365651 A small part of the rim of a fly wheel breaks off while it is rotating at a constant angular speed. Then its radius of gyration will

365652 A child is standing with his arms outstretched at the centre of a turntable that is rotating about its central axis with an angular speed \(\omega_{0}\). Now, the child folds his hands back so that moment of inertia becomes 3 times the initial value. The new angular speed is

365653 A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere is increased keeping its mass same. Which of the following physical quantities would remain constant for the sphere?

365650 Assertion :
A girl sits on a rolling chair, when she stretches her arms horizontally, her speed is reduced.
Reason :
Principle of conservation of angular momentum is applicable in this situation.

365651 A small part of the rim of a fly wheel breaks off while it is rotating at a constant angular speed. Then its radius of gyration will

365652 A child is standing with his arms outstretched at the centre of a turntable that is rotating about its central axis with an angular speed \(\omega_{0}\). Now, the child folds his hands back so that moment of inertia becomes 3 times the initial value. The new angular speed is

365653 A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere is increased keeping its mass same. Which of the following physical quantities would remain constant for the sphere?

365650 Assertion :
A girl sits on a rolling chair, when she stretches her arms horizontally, her speed is reduced.
Reason :
Principle of conservation of angular momentum is applicable in this situation.

365651 A small part of the rim of a fly wheel breaks off while it is rotating at a constant angular speed. Then its radius of gyration will

365652 A child is standing with his arms outstretched at the centre of a turntable that is rotating about its central axis with an angular speed \(\omega_{0}\). Now, the child folds his hands back so that moment of inertia becomes 3 times the initial value. The new angular speed is

365653 A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere is increased keeping its mass same. Which of the following physical quantities would remain constant for the sphere?