Home
Class 12
PHYSICS
lf the earth of radius R, while rotating...

lf the earth of radius R, while rotating with angular velocity ro becomes stand still, what will be the effect on the weight of a body of mass rn at a latitude of 45°?

A

Remains unchanged

B

Decreases by R `omega^2`

C

Increases by R `omega^2`

D

Increases by R `omega^2//2`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|109 Videos
  • GRAVITATION

    TARGET PUBLICATION|Exercise EVALUATION TEST|24 Videos
  • GRAVITATION

    TARGET PUBLICATION|Exercise EVALUATION TEST|24 Videos
  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos
  • INTERFERENCE AND DIFFRACTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos

Similar Questions

Explore conceptually related problems

If a body of mass 'm' and radius of gyration K rotates with angular velocity omega , then the angular momentum of the body will be

A ring of radius 'r' and mass per unit length 'm' rotates with an angular velocity 'omega' in free space then :

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

A ring of mass m and radius R is being rotated about its axis with angular velocity omega . If a increases then tension in ring

A circular disc of mass M and radius R is rotating with angular velocity omega . If two small spheres each of mass m are gently attached to two diametrically opposite points on the edge of the disc, then the new angular velocity of the disc will be

A hoop of radius r mass m rotating with an angular velocity omega_(0) is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it cases to slip ?

If R is the radius of the earth and w is angular velocity with which it rotates about its axis the variation in the value of g at 45^(@) latitude of the earth stops its rotation will be

A disc of mass M and radius r is rotating with an angular velocity omega . If gently, two masses m each are placed at a distance r//2 on either side of the axis of rotation, what will be the new angular velocity ?

TARGET PUBLICATION-GRAVITATION-CRITICAL THINKING
  1. Assuming the earth as a sphere of unifonn density. the acceleration du...

    Text Solution

    |

  2. lf change in the value of g at a depth d below the surface of the eart...

    Text Solution

    |

  3. lf the earth of radius R, while rotating with angular velocity ro beco...

    Text Solution

    |

  4. The mass of the moon is 1/81 of the earth but the gravitational pull i...

    Text Solution

    |

  5. A body weights 63 N on the surface of the earth At a height h above th...

    Text Solution

    |

  6. If the earth were assumed to have uniform density and spherical symmet...

    Text Solution

    |

  7. If the radius of the earth were to shrink by 1% its mass remaining the...

    Text Solution

    |

  8. The value of acceleration due to gravity will be 1% of its value at th...

    Text Solution

    |

  9. he value of 'g' at a certain height h above the free surface of Earth ...

    Text Solution

    |

  10. If both the mass and radius of the earth decrease by 1% the value of

    Text Solution

    |

  11. R is the radius of the earth and omega is its angular velocity and g(p...

    Text Solution

    |

  12. What should be the angular speed of earth in radian/second so that a b...

    Text Solution

    |

  13. In order to find time, the astronaut orbiting in an earth satellite sh...

    Text Solution

    |

  14. A spring balance is graduated on sea level. If a body is weighed with ...

    Text Solution

    |

  15. A body is taken from the centre of the Earth to the Moon. What will be...

    Text Solution

    |

  16. To have an earth satellite synchronous with the rotation of the earth,...

    Text Solution

    |

  17. A relay satellite transmits the television programme from one part of ...

    Text Solution

    |

  18. If a body is released from an artificial satellite then

    Text Solution

    |

  19. If a satellite orbits as close to the earth's surface as possible,

    Text Solution

    |

  20. At a given place where acceleration due to gravity is g m//sec^(2), a ...

    Text Solution

    |