Home
Class 11
PHYSICS
The density of a newly discovered planet...

The density of a newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is `R`, the radius of the planet would be

A

`2 R`

B

`4 R`

C

`1/4 R`

D

`1/2 R`

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

The density of a newly discovered planet is twice that of the earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth be R, then radius of the planet would be

The density of a newly discovered planet is twice that of earth. The acceleration due to gravity at surface of planet is half of the acceleration at surface of earth, if radius of the earth is R. The radius of planet would be

Acceleration due to gravity at surface of a planet is equal to that at surface of earth and density is 1.5 times that of earth. If radius is R. radius of planet is

The density of a planet PL1 is thrice that of planet PL2. The acceleration due to gravity at the surface of PL1 is (1^(th))/(9) of that at the surface of planet PL2. If the radius of planet PL2 is R, then the radius of planet PL1 will be

A planet has twice the density of earth but the acceleration due to gravity on its surface is exactly the same as that on the surface of earth. Its radius in terms of earth's radius R will be

The acceleration due to gravity on the surface of a planet is one - fourth of the value on Earth. When a brass ball is brought to this planet , its

The acceleration due to gravity near the surface of a planet of radius R and density d is proportional to

ERRORLESS -GRAVITATION-Acceleration Due to Gravity
  1. The value of g (acceleration due to gravity) at earth's surface is 10 ...

    Text Solution

    |

  2. A research satellite of mass 200 kg circles the earth in an orbit of a...

    Text Solution

    |

  3. Acceleration due to gravity on moon is 1//6 of the acceleration due to...

    Text Solution

    |

  4. The acceleration of a body due to the attraction of the earth (radius ...

    Text Solution

    |

  5. The depth at which the effective value of acceleration due to gravity ...

    Text Solution

    |

  6. Weight of a body of a mass m decreases by 1% when it is raised to heig...

    Text Solution

    |

  7. If both the mass and radius of the earth decrease by 1% the value of

    Text Solution

    |

  8. The density of a newly discovered planet is twice that of earth. The a...

    Text Solution

    |

  9. Two planets of radii in the ratio 2 : 3 are made from the materials of...

    Text Solution

    |

  10. A person will ge more quantity of matter in kg-wt at

    Text Solution

    |

  11. At what depth below the surface of the earth, acceleration due to grav...

    Text Solution

    |

  12. What would be the angular speed of earth, so that bodies lying on equa...

    Text Solution

    |

  13. A body weight 500 N on the surface of the earth. How much would it wei...

    Text Solution

    |

  14. If the density of a small planet is the same as that of earth while th...

    Text Solution

    |

  15. Acceleration due to gravity ' g ' for a body of mass ' m ' on earth's ...

    Text Solution

    |

  16. A body has a weight 90 kg on the earth's surface, the mass of the moon...

    Text Solution

    |

  17. If it is assumed that the spinning motion of earth increases, then the...

    Text Solution

    |

  18. The masses of two planets are in the ratio 1 : 2. Their radii are in t...

    Text Solution

    |

  19. If earth is supposed to be sphere of radius R, if g(30) is value of ac...

    Text Solution

    |

  20. If M is the mass of the earth and R its radius, the ratio of the gravi...

    Text Solution

    |