Home
Class 12
PHYSICS
If the earth suddenly shrinks (without c...

If the earth suddenly shrinks (without changing mass) to half of its present radius, the acceleration due to gravity will be

A

g/2

B

4g

C

g/4

D

2g

Text Solution

Verified by Experts

The correct Answer is:
b
`g=(GM)/(R^(2))`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|458 Videos

  • INTERFERENCE AND DIFFRACTION

    NIKITA PUBLICATION|Exercise MULTPLE CHOICE QUESTIONS|333 Videos

Similar Questions

Explore conceptually related problems

If the earth suddenly shrinks (without changing mass) to half of its present radius, then acceleration due to gravity will be

If the earth suddenly shrinks (without changing and half of its present radius , the acceleration due to gravity be

If the earth shrinks without change in mass, what will be the effect on the value of acceleration due to gravity g?

Statement I: If the earth suddenly stops rotating about its axis, then the acceleration due to gravity will become the same at all the places. Statement II: The value of acceleration due to gravity is independent of rotation of the earth.

A satellite is revolving around earth in its equatorial plane with a period T . If the radius of earth suddenly shrinks to half without change in the mass. Then, the new period of revolution will be

If radius of earth shrinks by 1% then for acceleration due to gravity :

When the radius of earth is reduced by 1% without changing the mass, then the acceleration due to gravity will

Statement-1 : If earth shrink (without change in mass) to half of its present size, length of the day would become 6 hours. Statement-2 : When the size of the earth will change, its moment of inertia will also change.

If the earth were to suddenly contract to half of its present radius (without any external torque on it), by what duration would the day be decreased ? Assume earth to be perfect solid sphere of radius (2)/(5)MR^(2) .

NIKITA PUBLICATION-GRAVITATION-Multiple Choice Questions
  1. The maximum vertical distance through which a person can jump on the e...

    Text Solution

    |

  2. The earth is a solid sphere of radius 6400 km, the value of accelerati...

    Text Solution

    |

  3. If the earth suddenly shrinks (without changing mass) to half of its p...

    Text Solution

    |

  4. If omega is the angular velocity of rotation of the earth about its ax...

    Text Solution

    |

  5. An artificial satellite is orbiting at a height of 1800 km from the ea...

    Text Solution

    |

  6. A satellite revolving round the earth in a circular orbit with orbital...

    Text Solution

    |

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

    Text Solution

    |

  8. A hole is drilled half - way to the centre of the earth. A body weighs...

    Text Solution

    |

  9. Radius of earth is around 6000 km . The weight of body at height of 60...

    Text Solution

    |

  10. An object weighs 20 N at the north pole of the earth. In a satellite, ...

    Text Solution

    |

  11. The height of the point vertically above the earth's surface, at which...

    Text Solution

    |

  12. If the acceleration due to gravity at a height 'h' from the surface of...

    Text Solution

    |

  13. The reduction in acceleration due to gravity at height equal to the ra...

    Text Solution

    |

  14. If R is the radius of the earth , the height from its surface at which...

    Text Solution

    |

  15. If R is the radius of the earth, the height at which g will decrease b...

    Text Solution

    |

  16. The weights of two objects one lying at the equator and the other at l...

    Text Solution

    |

  17. Acceleration due to gravity at a depth equal to half the radius of ear...

    Text Solution

    |

  18. The weight of a body on the suface of the earth is 100 N. The same at ...

    Text Solution

    |

  19. The ratio of the binding energies of a stationary body at height equal...

    Text Solution

    |

  20. Artificial satellite moving around the earth is just like a

    Text Solution

    |