Home
Class 11
PHYSICS
A man weighs 80 kg on the surface of ear...

A man weighs 80 kg on the surface of earth of radius R. At what height above the surface of earth his weight will be 40 kg?

A

R/2

B

`sqrt2R`

C

`(sqrt2-1)R`

D

`(sqrt2+1)R`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    PATHFINDER|Exercise QUESTION BANK|139 Videos
  • HYDROSTATICS, VISCOSITY AND SURFACE TENSION (HYDRODYNAMICS)

    PATHFINDER|Exercise QUESTION BANK|198 Videos

Similar Questions

Explore conceptually related problems

At what height above the surface of earth acceleration due to gravity will be (i) 4%

A body weight 90 kgf on the surface of earth. How much will it weight on the surface of a planet whose mass is 1/9 and radius 1/2 that of the earth ?

The weight of a body on the surface of the earth is 12.6 N. When it is elevated to a height half the radius of the earth its weight will be

Time period of a simple pendulum on the surface of the earth is T_(1) and at a hight R above the surface of the earth is T_(2) , here R is the radius of the earth. The ratio T_(2)//T_(1) is

If the radius of the earth is R , the height above the surface of the earth where the acceleration due to gravity will be 1% of its value on the earth's surface is

The height of a geostationary satellite from the surface of the earth is

If the earth is assumed to be a sphere of radius R, the height above the surface of the earth where the value of the acceleration due to gravity will be half its value on the earth's surface is

PATHFINDER-GRAVITATION-QUESTION BANK
  1. A planet is revolving in an elliptical orbit around the sun. Its close...

    Text Solution

    |

  2. Three uniform spheres, each having mass m and radius r, are kept in su...

    Text Solution

    |

  3. A man weighs 80 kg on the surface of earth of radius R. At what height...

    Text Solution

    |

  4. A diametrical tunnel is dug across the earth A ball is dropped into th...

    Text Solution

    |

  5. A tunnel is dug along a chord of the earth at a perpendicular distance...

    Text Solution

    |

  6. Which of the following are correct

    Text Solution

    |

  7. Let V and E denote the gravitational potential and gravitational field...

    Text Solution

    |

  8. An orbiting satellite will escape if

    Text Solution

    |

  9. A double star consists of two stars having masses M and 2M. The distan...

    Text Solution

    |

  10. Mark the correct statements

    Text Solution

    |

  11. Suppose a smooth tunnel is dug along a straight fine joining two point...

    Text Solution

    |

  12. Choose the wrong statements from the following

    Text Solution

    |

  13. A satellite is orbiting the earth in a circular orbit or radius r. Its

    Text Solution

    |

  14. A solid sphere of mass m and radius r is placed inside a hollow thin s...

    Text Solution

    |

  15. A solid sphere of mass m and radius r is placed inside a hollow thin s...

    Text Solution

    |

  16. The gravitational field in a region is given by vecE=(5N kg^-1)veci+ ...

    Text Solution

    |

  17. The gravitational field in a region is given by vecE=(5N kg^-1)veci+ ...

    Text Solution

    |

  18. In Column I, four artificial satellites of earth are shown, while in C...

    Text Solution

    |

  19. Four identical satellites are orbiting in four elliptical orbits havin...

    Text Solution

    |

  20. An artificial satellite is in circular orbit around the earth earth. O...

    Text Solution

    |