Home
Class 11
PHYSICS
Two planets of radii r1, and r2, are mad...

Two planets of radii `r_1`, and `r_2`, are made from the same material. The ratio of the acceleration of gravity `g_1/g_2` at the surfaces of the planets

A

`r_1/r_2`

B

`r_2/r_1`

C

`(r_1/r_2)^2`

D

`(r_2/r_1)^2`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Transfer of heat

    MODERN PUBLICATION|Exercise Exercise|27 Videos

  • Unit test - Properties of bulk matter

    MODERN PUBLICATION|Exercise Example|130 Videos
MODERN PUBLICATION-Unit Test - Gravitation-Example
  1. A body is thrown vertically upwards with a velocity of 19.6 ms^-1 The ...

    Text Solution

    |

  2. A parachutist after bailing out falls 50 m without friction When parac...

    Text Solution

    |

  3. Two planets of radii r1, and r2, are made from the same material. The ...

    Text Solution

    |

  4. If mass of a body is M on the earth surface, then the mass of the same...

    Text Solution

    |

  5. If the radius of earth shrinks by one percent and its mass remaining t...

    Text Solution

    |

  6. At what depth below the surface of the earth, is the value of g same a...

    Text Solution

    |

  7. A body weighed 250 N on the surface assuming the earth to be a sphere ...

    Text Solution

    |

  8. If the earth were to cease rotating about its own axis, the increase i...

    Text Solution

    |

  9. The angular velocity of rotation of a star (of mass M and radius R), a...

    Text Solution

    |

  10. Knowing that mass of moon is M/81 (where M is the mass of earth), find...

    Text Solution

    |

  11. Two masses M1 and M2 are initially at rest at infinite distance apart....

    Text Solution

    |

  12. The velocity with which a projectile, must be tired so that it escapes...

    Text Solution

    |

  13. The escape velocity of a particle of mass m varies directly as

    Text Solution

    |

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

    Text Solution

    |

  15. The mass of moon is 1/81 of earth's mass and its radius 1/4 of that of...

    Text Solution

    |

  16. The escape Velocity from the earth is 11.2 Km/s^-1. The escape Velocit...

    Text Solution

    |

  17. There is no atmosphere on the moon, because

    Text Solution

    |

  18. A missile is launched with a velocity less than the escape velocity. T...

    Text Solution

    |

  19. A satellite S is moving in an elliptical orbit around the earth. The m...

    Text Solution

    |

  20. A satellite of the earth is revolving in a circular orbit with a unifo...

    Text Solution

    |