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Assertion: If polar ice melts, the days ...

Assertion: If polar ice melts, the days will be shorter. Reason: Moment of inertia decreases and thus angular velocity increases.

A

if both assertion and reason are true and reason is the correct explanation of the assertion.

B

if both assertion and reason are true but reason is not correct explanation of the assertion.

C

if assertion is true, but reason is false.

D

if both assertion and reason are false.

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MODERN PUBLICATION-Moment of Inertia-Example
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  2. Assertion: The earth is slowing down and as a result the moon is comin...

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  3. Assertion: If polar ice melts, the days will be shorter. Reason: Momen...

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  4. Assertion: If ice caps of the pole melts, the day length will shorten....

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  5. Assertion: If polar ice melts, the days will be shorter. Reason: Momen...

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  6. Assertion: The speed of a whirlwind in a tornado is alarmingly high. R...

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  7. A small disc of radius 2 cm is cut from a disc of radius 6cm. If the d...

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  8. If vectors vecA and vecB have angle between them, then the vector prod...

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  9. In which of the following cases, the use of angular velocity is useful...

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  10. A solid cylinder of mass 20 kg rotates about its axis with angular spe...

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  11. A satellite of mass m in is circulating around the earth with constant...

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  12. The moment of inertia of a body comes into play

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  13. The moment of inertia of a rigid body, depends upon

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  14. The moment of inertia of a regular circular disc of mass 0.4 kg and ra...

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  15. A cylinder of 500 g and radius 10 cm has the moment of inertia about i...

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  16. Three point masses, each of mass m, are placed at the corners of an eq...

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  17. A wheel of 6 kg mass and 0.40 m radius of gyration is making 300 r.p.m...

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  18. A cord is wound round the circumference of wheel of radius r. The axis...

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  19. If radius of the earth contracts to half of its present value without ...

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  20. A circular disc is rotating with angular velocity omega. If a man stan...

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