Home
Class 11
PHYSICS
Assertion: If ice caps of the pole melts...

Assertion: If ice caps of the pole melts, the day length will shorten. Reason: Ice flows towards the equator and decreases the moment of inertia of the earth and hence increases the frequency of rotation of the earth.

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.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Moment of Inertia

    MODERN PUBLICATION|Exercise Example|323 Videos
  • Gravitational potential and potential energy

    MODERN PUBLICATION|Exercise Exercise|17 Videos
  • Motion of Satellites

    MODERN PUBLICATION|Exercise Exercise|25 Videos
MODERN PUBLICATION-Moment of Inertia-Example
  1. Assertion: The earth is slowing down and as a result the moon is comin...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  20. Two blocks of masses 10 kg and 4 kg are connected by a spring of negli...

    Text Solution

    |