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If the earth loses its atmosphere sudenl...

If the earth loses its atmosphere sudenly, then the duration of day will :-

A

increase

B

decrease

C

remain unchanged

D

nothing can be definitely said

Text Solution

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The correct Answer is:
B
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MOTION-ROTATIONAL MOTION -Exercise - 1
  1. A solid sphere and hollow sphere of the same material have mass. Then ...

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  2. Three spheres, each mass M and radius R, are arranged as shown in the ...

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  3. If the earth loses its atmosphere sudenly, then the duration of day wi...

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  4. The moment of inertia and rotational kinetic energy of a fly wheel are...

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  5. A disc of radius 1m and mass 1 kg is rotating with 40 radians/sec. the...

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  6. An automobile engine develops 100H.P. when rotating at a speed of 1800...

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  7. A ring of diameter 1m is rotating with an angular momentum of 10 Joule...

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  8. A body is rotating uniformly about a vertical axis fixed in an inertia...

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  9. A torque of 2 newton-m produces an angular acceleration of 2 rad//sec^...

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  10. The torque applied to a ring revolving about its own axis so as to cha...

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  11. The rate of change of angular momentum is called

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  12. The angular velocity of a body changes from one revolution per 9 sec...

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  13. If a person sitting on a rotating stool with his hands outstretched, s...

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  14. The rotational kinetic energy of a rigid body of moment of inertia 5 ...

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  15. A circular ring of mass 1kg and radius 0.2m executes 10 revolutions pe...

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  16. Which quantity is not directly related with rotational motion

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  17. A particle of mass m is rotating in a plane in circular path of radius...

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  18. When a mass is rotating in a plane about a fixed point, its angular mo...

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  19. The rotational kinetic energy is -

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  20. A rigid body is rotating about an axis. The best way to stop it is app...

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