Home
Class 11
PHYSICS
If 'g' is the potential energy of an obj...

If 'g' is the potential energy of an object of mass 'm' raised from the surface of the earth to a height equal to the radius 'R' of the earth is

A

`(1)/(4)mgR`

B

`(1)/(2)mgR`

C

`2mgR`

D

`mgR`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) `Delta U = (-GmM)/(2R) + (GmM)/(R ), DeltaU = (GmM)/(2R)`
Now `(GM)/(R^2) = g, :. (GM)/(R ) = gR :. Delta U = (1)/(2)mgR`
Promotional Banner

Topper's Solved these Questions

  • HEAT AND THERMODYNAMICS

    SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise JEE Main And Advanced|219 Videos

Similar Questions

Explore conceptually related problems

If g is the acceleration due to gravity on earth's surface, the gain of the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth is

If g is the acceleration due to gravity on the earth's surface, the gain in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth, is

If g is the acceleration due to gravity on the earth's surface the gain in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R to earth is (NmgR)/(2) Find the value of N .

If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from surface of the earth to a height equal to radius R of the earth is - [M = mass of earth]

The acceleration due to gravity on the surface of the earth is g. If a body of mass m is raised from the surface of the earth to a height equal to the radius R of the earth, then the gain in its potential energy is given by

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth is

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :

SUNIL BATRA (41 YEARS IITJEE PHYSICS)-GRAVITATION-JEE Main And Advanced
  1. The escape velocity of a body depeds upon mass as

    Text Solution

    |

  2. The time period of a satellite of earth is 5 hours. If the separation ...

    Text Solution

    |

  3. Two spherical bodies of mass M and 5M & radii R & 2R respectively are ...

    Text Solution

    |

  4. The escape velocity for a body projected vertically upwards from the s...

    Text Solution

    |

  5. A satellite of mass m revolves around the earth of radius R at a hight...

    Text Solution

    |

  6. The time period of an earth stellite in circuarl orbit is independet f...

    Text Solution

    |

  7. If 'g' is the potential energy of an object of mass 'm' raised from th...

    Text Solution

    |

  8. Suppose the gravitational force varies inversely as the nth power of d...

    Text Solution

    |

  9. The change in the value of 'g' at a height 'h' above the surface of th...

    Text Solution

    |

  10. A particle of mass 10g is kept on the surface of a uniform sphere of ...

    Text Solution

    |

  11. Average density of the earth

    Text Solution

    |

  12. A planet in a distant solar systyem is 10 times more massive than the ...

    Text Solution

    |

  13. This question contains Statement -1 and Stantement -2 Of the four choi...

    Text Solution

    |

  14. The height at which the acceleration due to gravity becomes (g)/(9) (w...

    Text Solution

    |

  15. Two bodies of masses m and 4m are placed at a distance r. The gravitat...

    Text Solution

    |

  16. The mass of a spaceship is 1000kg. It is to be launched from the earth...

    Text Solution

    |

  17. What is the minimum energy required to launch a satellite of mass m fr...

    Text Solution

    |

  18. Four particles, each of mass M and equidistant from each other, move a...

    Text Solution

    |

  19. From a solid sphere of mass M and radius R, a spherical portion of rad...

    Text Solution

    |

  20. A satellite is revolving in a circular orbit at a height 'h' from the ...

    Text Solution

    |