Home
Class 11
PHYSICS
The radii of two planets are respectivel...

The radii of two planets are respectively `R_(1) and R_(2)` and their densities are respectively `rho_(1) and rho_(2)`.The ratio of the accelerations due to gravity at their surface is

A

`g_(1) : g_(2)=rho_(1)/R_(1)^(2) : rho_(2)/R_(2)^(2)`

B

`g_(1) : g_(2)=R_(1)R_(2) : rho_(1)rho_(2)`

C

`g_(1) : g_(2)=R_(1)rho_(2) : R_(2) rho_(1)`

D

`g_(1) : g_(2) =R_(1) rho_(1) : R_(2)rho_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    ERRORLESS |Exercise Gravitation Potential, Energy and Escape Velocity|70 Videos
  • GRAVITATION

    ERRORLESS |Exercise Motion of Satellite|67 Videos
  • GRAVITATION

    ERRORLESS |Exercise SET|27 Videos
  • FRICTION

    ERRORLESS |Exercise MCQ S|125 Videos
  • MOTION IN ONE DIMENSION

    ERRORLESS |Exercise Motion In One Dimension|24 Videos

Similar Questions

Explore conceptually related problems

R and r are the radii of the earth and moon respectively. rho_(e) and rho_(m) are the densities of earth and moon respectively. The ratio of the accelerations due to gravity on the surfaces of earth and moon is

Two planets have radii r_(1) and 2r_(1) and densities are rho_(1) and 4rho_(1) respectively. The ratio of their acceleration due to gravities is

The radii of two planets are R and 2R respectively and their densities p and rho//2 respectively, What is the ratio of acceleration due to gravity at their surfaces ?

Two planets have radii r_(1) and r_(2) and densities d_(1) and d_(2) respectively. Then the ratio of acceleration due to gravity on them is

If two planets of radii R_(1) and R_(2) have densities d_(1) and d_(2) , then the ratio of their respective acceleration due to gravity is

The radii of two planets are R_1 and R_2 ans their densities are rho_1 and rho_2 respectively. If g_1 and g_2 represent surfaces , then g_1/g_2 is

Suppose there are two planets, 1 and 2, having the same density but their radii are R_(1) and R_(2) respectively, where R_(1) gt R_(2). The accelerations due to gravity on the surface of these planets are related as

ERRORLESS -GRAVITATION-Acceleration Due to Gravity
  1. If R is the radius of the earth and g the acceleration due to gravity ...

    Text Solution

    |

  2. The weight of an object in the coal mine, sea level and at the top of ...

    Text Solution

    |

  3. The radii of two planets are respectively R(1) and R(2) and their dens...

    Text Solution

    |

  4. The mass of the earth is 81 times that of the moon and the radius of t...

    Text Solution

    |

  5. Spot the wrong statement : The acceleration due to gravity ‘ g ’ decr...

    Text Solution

    |

  6. Which of the following statements is true

    Text Solution

    |

  7. A spring balance is graduated on sea level. If a body is weighed with ...

    Text Solution

    |

  8. The value of g on the earth's surface is 980 cm//sec^(2) . Its value a...

    Text Solution

    |

  9. Choose the correct statement from the following : Weightlessness of...

    Text Solution

    |

  10. If earth were to rotate faster than its present speed, the weight of a...

    Text Solution

    |

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

    Text Solution

    |

  12. The moon's radius is 1//4 that of the earth and its mass 1//80 times t...

    Text Solution

    |

  13. R is the radius of the earth and omega is its angular velocity and g(p...

    Text Solution

    |

  14. The depth at which the value of acceleration due to gravity is 1/n tim...

    Text Solution

    |

  15. At what height over the earth's pole, the free fall acceleration decre...

    Text Solution

    |

  16. The diameters of two planets are in the ratio 4 : 1 and their mean den...

    Text Solution

    |

  17. At what altitude will the acceleration due to gravity be 25% of that a...

    Text Solution

    |

  18. If the angular speed of the earth is doubled, the value of acceleratio...

    Text Solution

    |

  19. At the surface of a certain planet acceleration due to gravity is one ...

    Text Solution

    |

  20. Weight of 1 kg becomes 1//6 on moon. If radius of moon is 1.768xx10^(6...

    Text Solution

    |