ANGULAR MOMENTUM \& CONSERVATION OF ANGULAR MOMENTUM
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Rotational Motion

269332 A circular disc is rotating in horizontal plane about vertical axis passing through itscentre without friction with a person standing on the disc at its edge. If the person gently walks to centre of disc then its angular velocity

1 increases
2 decreases
3 does not change
4 becomes zero
Rotational Motion

269333 A ballet dancer is rotating about his own vertical axis. Without external torque if his angular velocity is doubled then his rotational kinetic energy is

1 halved
2 doubled
3 quadrupled
4 unchanged
Rotational Motion

269334 The following motion is based on the law of conservation of angular momentum
A) rotation of top
B) diving of diver
C) rotation of ballet dancer on smooth
horizontal surface
D) a solid sphere that rolls down on an inclined plane

1 \(A, B\) and \(C\) are true
2 \(A, B\) and \(D\) are true
3 \(B, C\) and \(D\) are true
4 \(A, C\) and \(D\) are true
Rotational Motion

269335 Two bodies with moment of inertia\(I_{1}\) and \(I_{2}\) \(\left(I_{2}\lt I_{1}\right)\) are rotating with same angular momentum. If \(K_{1}\) and \(K_{2}\) are their K.E.s, then

1 \(K_{2}\lt K_{1}\)
2 \(K_{2}
3 \(K_{1}=K_{2}\)
4 \(K_{2} \geq K_{1}\)
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Rotational Motion

269332 A circular disc is rotating in horizontal plane about vertical axis passing through itscentre without friction with a person standing on the disc at its edge. If the person gently walks to centre of disc then its angular velocity

1 increases
2 decreases
3 does not change
4 becomes zero
Rotational Motion

269333 A ballet dancer is rotating about his own vertical axis. Without external torque if his angular velocity is doubled then his rotational kinetic energy is

1 halved
2 doubled
3 quadrupled
4 unchanged
Rotational Motion

269334 The following motion is based on the law of conservation of angular momentum
A) rotation of top
B) diving of diver
C) rotation of ballet dancer on smooth
horizontal surface
D) a solid sphere that rolls down on an inclined plane

1 \(A, B\) and \(C\) are true
2 \(A, B\) and \(D\) are true
3 \(B, C\) and \(D\) are true
4 \(A, C\) and \(D\) are true
Rotational Motion

269335 Two bodies with moment of inertia\(I_{1}\) and \(I_{2}\) \(\left(I_{2}\lt I_{1}\right)\) are rotating with same angular momentum. If \(K_{1}\) and \(K_{2}\) are their K.E.s, then

1 \(K_{2}\lt K_{1}\)
2 \(K_{2}
3 \(K_{1}=K_{2}\)
4 \(K_{2} \geq K_{1}\)
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Rotational Motion

269332 A circular disc is rotating in horizontal plane about vertical axis passing through itscentre without friction with a person standing on the disc at its edge. If the person gently walks to centre of disc then its angular velocity

1 increases
2 decreases
3 does not change
4 becomes zero
Rotational Motion

269333 A ballet dancer is rotating about his own vertical axis. Without external torque if his angular velocity is doubled then his rotational kinetic energy is

1 halved
2 doubled
3 quadrupled
4 unchanged
Rotational Motion

269334 The following motion is based on the law of conservation of angular momentum
A) rotation of top
B) diving of diver
C) rotation of ballet dancer on smooth
horizontal surface
D) a solid sphere that rolls down on an inclined plane

1 \(A, B\) and \(C\) are true
2 \(A, B\) and \(D\) are true
3 \(B, C\) and \(D\) are true
4 \(A, C\) and \(D\) are true
Rotational Motion

269335 Two bodies with moment of inertia\(I_{1}\) and \(I_{2}\) \(\left(I_{2}\lt I_{1}\right)\) are rotating with same angular momentum. If \(K_{1}\) and \(K_{2}\) are their K.E.s, then

1 \(K_{2}\lt K_{1}\)
2 \(K_{2}
3 \(K_{1}=K_{2}\)
4 \(K_{2} \geq K_{1}\)
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Rotational Motion

269332 A circular disc is rotating in horizontal plane about vertical axis passing through itscentre without friction with a person standing on the disc at its edge. If the person gently walks to centre of disc then its angular velocity

1 increases
2 decreases
3 does not change
4 becomes zero
Rotational Motion

269333 A ballet dancer is rotating about his own vertical axis. Without external torque if his angular velocity is doubled then his rotational kinetic energy is

1 halved
2 doubled
3 quadrupled
4 unchanged
Rotational Motion

269334 The following motion is based on the law of conservation of angular momentum
A) rotation of top
B) diving of diver
C) rotation of ballet dancer on smooth
horizontal surface
D) a solid sphere that rolls down on an inclined plane

1 \(A, B\) and \(C\) are true
2 \(A, B\) and \(D\) are true
3 \(B, C\) and \(D\) are true
4 \(A, C\) and \(D\) are true
Rotational Motion

269335 Two bodies with moment of inertia\(I_{1}\) and \(I_{2}\) \(\left(I_{2}\lt I_{1}\right)\) are rotating with same angular momentum. If \(K_{1}\) and \(K_{2}\) are their K.E.s, then

1 \(K_{2}\lt K_{1}\)
2 \(K_{2}
3 \(K_{1}=K_{2}\)
4 \(K_{2} \geq K_{1}\)
NEET DIGITAL LIBRARY