Home
Class 12
PHYSICS
If the radius of the earth was half of i...

If the radius of the earth was half of its present value and its mass `(1//8)^("th")` of the present mass, the g value would have been reduced to

A

1/8 g

B

1/2 g

C

1/3 g

D

g

Text Solution

Verified by Experts

The correct Answer is:
b
`(g_(2))/(g_(1))=(M_(2))/(M_(1))((R_(1))/(R_(2)))^(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 radius of the earth becomes half of its present value (mass remaining the same ), the new length of the day would be

How does the weight of an object vary with respect to mass and radius of the earth. In a hypothetical case, if the diameter of the earth becomes half of its present value and its ,mass becomes four times of its present value, then how would the weight of any object on the surface of the earth be affected?

If diameter of earth becomes half of its present value and its mass becomes four times its present value, how would the weight of any object on the surface of earth be affected ?

If the radius of the earth suddenly decreases to 80% of its present value, the mass of the earth remaining the same, the value of the acceleration due to gravity will

If the radius of the earth contracts to half of its present value without change in its mass, what will be the new duration of the day?

If radius of the earth contracts to half of its present value without change in its mass, what will be the new duration of the day?

If the radius of earth contracts 1/n of its present day value, the length of the day will be approximately

NIKITA PUBLICATION-GRAVITATION-Multiple Choice Questions
  1. The depth d, at which the value of acceleration due to gravity becomes...

    Text Solution

    |

  2. If the radius of the earth shrinks by 1.5% (mass remaining same), then...

    Text Solution

    |

  3. If the radius of the earth was half of its present value and its mass ...

    Text Solution

    |

  4. A thief jumps from the upper storey of a house with a load on this bac...

    Text Solution

    |

  5. Two planets have radii r(1) and 2r(1) and densities are rho(1) and 4rh...

    Text Solution

    |

  6. The mass of earth is 80 times that of moon. Their diameters are 12800 ...

    Text Solution

    |

  7. The value of G was successfully determined for the first time in the l...

    Text Solution

    |

  8. The minimum number of communication satellites necessary for intercont...

    Text Solution

    |

  9. If a graph is plotted between T^(2) and r^(3) for a planet, then its s...

    Text Solution

    |

  10. An object falls through a distance h in certain time on the earth. The...

    Text Solution

    |

  11. Average density of the earth

    Text Solution

    |

  12. The acceleration due to gravity on a planet of mass 10^(25) Kg and rad...

    Text Solution

    |

  13. The identical metal spheres of radius 10 cm are in contact with each o...

    Text Solution

    |

  14. The mass of lift is 500 kg. When it ascends with an acceleration of 2m...

    Text Solution

    |

  15. If the radius of the earth is 6400 km, the height above the surface of...

    Text Solution

    |

  16. The depth from the surface of the earth where acceleration due to grav...

    Text Solution

    |

  17. Mass remaining the same, if radius of the earth is doubled, accelerati...

    Text Solution

    |

  18. The velocity of a setallite in a parking orbit is

    Text Solution

    |

  19. The maximum vertical distance through which a person can jump on the e...

    Text Solution

    |

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

    Text Solution

    |