Home
Class 11
PHYSICS
The radius and acceleration due to gravi...

The radius and acceleration due to gravity of the moon are `1/4` and `1/5` that of the earth, the ratio of the mass of the earth to mass of the moon is

A

`1:80`

B

`80:1`

C

`1:20`

D

`20:1`

Text Solution

Verified by Experts

The correct Answer is:
B

`g=(GM)/(R^(2))rArrgalphaM/(R^(2))`
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    NARAYNA|Exercise LEVEL-V|54 Videos
  • GRAVITATION

    NARAYNA|Exercise LEVEL-VI|42 Videos
  • GRAVITATION

    NARAYNA|Exercise LEVEL -I(H.W)|56 Videos
  • FRICTION

    NARAYNA|Exercise Passage type of questions I|6 Videos
  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-III(C.W)|52 Videos

Similar Questions

Explore conceptually related problems

If acceleration due to gravity on the surface of moon is (1//5)^("th") that at the surface of the earth and radius of the moon is (1//4)^("th") that of the earth, then the ratio of the mass of the earth to mass of moon is

The ratio of the radius of the earth to that of the motion is 10. the ratio of the acceleration due to gravity on the earth to that on the moon is 6. The ratio of the escape velocity from the earth's surface to that from the moon is

An astronaut on the moon measures the acceleration due to gravity to be 1.7 ms^(-2) . He known that the radius of the moon is about 0.27 times that of the earth . Find the ratio of the mass of the earth to that of the moon , if the value of g on the earth's surface is 9.8 ms^(-2) .

The acceleration due to gravity on the surface of the moon is one-sixth that on the earth. The radius of the moon is about one-fourth tha tof the earth. If v_(e) is the escape velocity on the surfaceo f the earth, then escape velocity on the surface of the moon will be

The acceleration due to gravity on the moon is (1^(th))/(6) that on the earth. If the earth and the moon are assumed to have the same density, then the radius of the moon is

The acceleration due to gravity on the moon is one-sixth that on earth. If the average density of moon is three-fifth that of earth, the moon's radius in terms of earth's radius R_(e) is -

The acceleration due to gravity on the moon is only one sixth that of earth.It the earth and moon are assume to have the same density, the ratio of the radii of moon and earth will be

The value of acceleration due to gravity 'g' on the surface of the moon with radius 1/2 that of the earth and same mean density as that of the earth

Assertion: The acceleration due to gravity on the moon is one-sixth that on the earth. Reason : The law of gravitation is the same on both the moon and the earth.

NARAYNA-GRAVITATION-LEVEL-II (H.W)
  1. The difference in the value of g at poles and at a sphere of latitude,...

    Text Solution

    |

  2. The angular velocity of the earth's rotation about its axis is omega. ...

    Text Solution

    |

  3. The radius and acceleration due to gravity of the moon are 1/4 and 1/5...

    Text Solution

    |

  4. The difference in the value of g at poles and at a latitude is 3/4R om...

    Text Solution

    |

  5. A particle hanging from a spring stratches it by 1cm at earth's surfac...

    Text Solution

    |

  6. A tunnel is dug along a diameter of the earth. Find the force on a par...

    Text Solution

    |

  7. The mass of the earth is 9 times that of the mars. The radius of the e...

    Text Solution

    |

  8. The escape velocity of a body from the earth is 11.2 km//s. If a body ...

    Text Solution

    |

  9. A particle is kept at rest at a distance R (earth's radius) above the ...

    Text Solution

    |

  10. 16 kg and 9kg are separated by 25m. The velocity with which a body sho...

    Text Solution

    |

  11. The escape velocity from the earth is 11 km//s. The escape velocity fr...

    Text Solution

    |

  12. The speed of a satellite that revolves around earth at a height 3R fro...

    Text Solution

    |

  13. If an artificial satellite is moving in a circular orbit around earth ...

    Text Solution

    |

  14. The radii of circular orbits of two satellite A and B of the earth are...

    Text Solution

    |

  15. A satellite moving in a circular path of radius r around earth has a t...

    Text Solution

    |

  16. A satellite is orbiting the earth in an orbit with a velocity 4 km//s,...

    Text Solution

    |

  17. A stone is dropped from a height equal to 3R, above the surface of ear...

    Text Solution

    |

  18. If g is the acceleration due to gravity on the earth's surface, the ga...

    Text Solution

    |

  19. The work done in bringing three particles each of mass 10 g from a lar...

    Text Solution

    |

  20. The energy required to shift the body revolving around a planet from r...

    Text Solution

    |