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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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MOTION-ROTATIONAL MOTION -Exercise - 1
  1. The physical significance of mass translational motion is same as whic...

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  2. Moment of inertia of a body depends upon

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

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  4. Two spheres of same mass and radius are in contact with each other. If...

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  5. In an arrangement four particles, each of mass 2 gram are situated at ...

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  6. A stone of mass 4kg is whirled in a horizontal circle of radius 1m and...

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  7. The moment of inertia of NaCl molecule with bond length r about an axi...

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  8. The moment of inertia of a body does not depend on

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  9. The moment of inertia of a sphere of radius R about an axis passing th...

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  10. Moment of inertia of a cylindrical shell of mass M, radius R and lengt...

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  11. A solid sphere and hollow sphere of the same material have mass. Then ...

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  12. Two discs have same mass and thickness. Their materials are of densiti...

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  13. A circular disc A of radius r is made from an iron plate of thickness ...

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  14. Three thin uniform rods each of mass M and length L and placed along t...

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  15. Three rings, each of mass P and radius Q are arranged as shown in the ...

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  16. The torque needed to produce an angular acceleration of 18rad/"sec"^2 ...

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

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  18. A disc of radius 2m and mass 200kg is acted upon by a torque 100N-m. I...

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  19. The dimensions of torque are :

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  20. On applying a constant torque on a body-

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