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On account of melting of ice at the nort...

On account of melting of ice at the north pole, the moment of inertia of spinning earth

A

increases

B

decreases

C

remains unchanged.

D

depends on the time.

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The correct Answer is:
A
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TARGET PUBLICATION-ROTATIONAL MOTION -MCQ
  1. The new dimensional formula for the moment of inertia of a body is

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  2. The M.I. of a cube will be minimum about an axis which

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  3. On account of melting of ice at the north pole, the moment of inertia ...

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  4. The corresponding quantities in rotational motion related to m, vecF, ...

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  5. The physical significance of mass translational motion is same as whic...

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  6. The physical quantity in translatory motion corresponding to torque in...

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  7. The rotational kinctic energy of a rotating body is proportional to

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  8. If the kinetic energy of rotation of a body about an axis is 9 J and t...

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  9. A flywheel rotating about a fixed axis has a kinetic energy of 360J wh...

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  10. The radius of gyration of a homogeneous body is independent of

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  11. The dimensions of the radius of gyration are

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  12. The dimensional formula for the radius of gyration of a body is

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  13. The radius of gyration of a disc about an axis coinciding with a tange...

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  14. The product of moment of inertia (I) and angular acceleration (alpha) ...

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  15. Torque/moment of inertia equals to

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  16. Which of the following statements is correct?

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  17. The dimensions of torque are :

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  18. Let vecF be the force acitng on a paritcle having positon vector vecr...

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  19. The dimensions of torque are the same as that of

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  20. A particle of mass M and radius of gyration K is rotating with angular...

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