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The angular momentum of a system of part...

The angular momentum of a system of particles is conserved:

A

When no external force acts upon the system

B

When no external torque acts upon the system

C

When no external impulse acts upon the system

D

When axis of rotation remains the same

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The correct Answer is:
B
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PREMIERS PUBLISHERS-MOTION OF SYSTEM OF PARTICLES AND BODIES-OTHER IMPORTANT QUESTIONS & ANSWER (MULTIPLE CHOICE QUESTIONS)
  1. Analogue of mass in rotational motion is

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  2. Identify the incorrect odd man out from the following expressions for ...

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  3. The angular momentum of a system of particles is conserved:

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  4. If a person standing on a rotating disc stretches out his hands, the a...

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  5. What quantities are conserved in this collision?

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  6. A uniform circular disc of radius 50 cm at is free to turn about an ax...

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  7. In an orbital motion, the angular momentum vector is

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  8. The angular momentum of a moving body remains constant if

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  9. The direction of angular velocity vector is along:

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  10. The angular momentum of a moving body remains constant if

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  11. Assertion: Friction is necessary for abody to roll on a surface. Rea...

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  12. A body is projected from the ground with some angle to the horizontal....

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  13. Kgm^(2) is the unit of ………………………….. Of a body.

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  14. Select the correct expression from the following: Moment of inertia ...

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  15. Moment of inertia of solid sphere of radius r(0) is

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  16. Choose the odd man out from the following :

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  17. If I is the moment of ienrtia, alpha is the angular acceleration and t...

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  18. A stone is tied to the end of a string of length 1 and whirled in a ho...

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  19. The dimension of torque is

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  20. If tau is the torque and theta is the angular displacement then work d...

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