Home
Class 12
PHYSICS
If the speed of rotation of earth about ...

If the speed of rotation of earth about its axis increases, then the weight of the body at the equator will

A

increases

B

decreases

C

becomes double

D

does not changes

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If the speed of rotation of earth about its axis is increased,

The rotation of earth about its axis is

What should be the angular velocity of rotation of Earth about its own axis so that the weight of body at the equator reduces to 3/5 of its present value? (Take R as the radius of the Earth)

The angular speed of rotation of earth about its axis at which the weight of man standing on the equator becomes half of his weight at the poles is given by

The acceleration due to gravity at the poles is 10ms^(-2) and equitorial radius is 6400 km for the earth. Then the angular velocity of rotaiton of the earth about its axis so that the weight of a body at the equator reduces to 75% is

If the rotational speed of earth increase, then weight of body at the equator

What should be the angular velocity of earth about its own axis so that the weight of the body at the equator would become 3/4 th of its present value ?

Assertion : If the earth stops rotating about its axis, the value of the weight of the body at equator will decrease. Reason : The centripetal force does not act on the body at the equator.

If spining speed of the earth is decreased , then weight of the body at the poles

ALLEN-GRAVITATION-EXERCISE 1
  1. Imagine a new planet having the same density as that of earth but 3 ti...

    Text Solution

    |

  2. The change in the value of g at a height h above the surface of the ea...

    Text Solution

    |

  3. If the speed of rotation of earth about its axis increases, then the w...

    Text Solution

    |

  4. A body weighs W newton at the surface of the earth. Its weight at a he...

    Text Solution

    |

  5. The imaginary angular velocity of the earth for which the effective ac...

    Text Solution

    |

  6. A particle falls on earth : (i) from infinity. (ii) from a height 10...

    Text Solution

    |

  7. Two different masses are droped from same heights. When these just str...

    Text Solution

    |

  8. By which curve will be variation of gravitational potential of a hollo...

    Text Solution

    |

  9. Gravitational potential difference between surface of a planet and a p...

    Text Solution

    |

  10. If M(e) is the mass of earth and M(m) is the mass of moon (M(e)=81 M(m...

    Text Solution

    |

  11. The gravitational potential energy is maximum at :

    Text Solution

    |

  12. A missile is launched with a velocity less than the escape velocity. T...

    Text Solution

    |

  13. A body attains a height equal to the radius of the earth when projecte...

    Text Solution

    |

  14. The gravitational potential energy of a body at a distance r from the ...

    Text Solution

    |

  15. A particle falls towards the earth from inifinity. The velocity with w...

    Text Solution

    |

  16. A projectile of mass m is thrown vertically up with an initial velocit...

    Text Solution

    |

  17. Two small and heavy spheres, each of mass M, are placed a distance r a...

    Text Solution

    |

  18. An artificial satellite moving in a circular orbit around the earth ha...

    Text Solution

    |

  19. A particle of mass m is moving in a horizontal circle of radius R unde...

    Text Solution

    |

  20. Potential energy of a 3kg body at the surface of a planet is -54 J, th...

    Text Solution

    |