Home
Class 12
PHYSICS
If the value of acceleration due to grav...

If the value of acceleration due to gravity on the surface of the earth is `9.8m//s^2`. What is the mean value of density of earth ?`(G=6.67xx10^-11nm^2//kg^2,R=6400km)`

A

a)12hr.

B

b)6hr.

C

c)3hr.

D

d)1.4hr.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • FRICTION

    MBD PUBLICATION|Exercise QUISTION BANK|72 Videos

  • KINETICS THEORY OF GASES

    MBD PUBLICATION|Exercise QUESTION BANK|264 Videos

Similar Questions

Explore conceptually related problems

What is the value of acceleration due to gravity on the surface of the moon ? Given that the mass of the moon is 1//80 times that of the earth and diameter of the moon is 1//4 times that of earth (g=9.8m//s^2) .

Acceleration due to gravity g=__________ m//s^2 .

The value of acceleration due to gravity is 980 cm//s^2 . What will be it’s value if lengthen kilometers and that of time in minute.

An apple of mass 250 gm falls from a tree. What is the approximate value of the acceleration of the earth towards the apple [G=6.67xx10^-11Nm^2//kg^2&R=6400km]

MBD PUBLICATION-GRAVITATION-QUESTION BANK
  1. What is the value of acceleration due to gravity on the surface of the...

    Text Solution

    |

  2. If the mass of the planet is 4 times that of the earth and radius of t...

    Text Solution

    |

  3. If the value of acceleration due to gravity on the surface of the eart...

    Text Solution

    |

  4. If the mass of earth reduces to half its present value with no change ...

    Text Solution

    |

  5. The height at which the acceleration due to gravity becomes g/9. (Wher...

    Text Solution

    |

  6. The latitude at which the acceleration due to gravity is 25% of that a...

    Text Solution

    |

  7. The height at which the acceleration due to gravity is 49% that of the...

    Text Solution

    |

  8. The height above the surface of the earth where the acceleration due t...

    Text Solution

    |

  9. The height at which the acceleration due to gravity is 49% that of the...

    Text Solution

    |

  10. The height at which the acceleration due to gravity is 49% that of the...

    Text Solution

    |

  11. What would be the duration of the year if the distance between the ear...

    Text Solution

    |

  12. Time period of the satellite very close to the earth’s surface is ,

    Text Solution

    |

  13. If the radius of communication satellite were to reduce to half, then ...

    Text Solution

    |

  14. A satellite revolving around the earth in a circular orbit has 4 times...

    Text Solution

    |

  15. What will be the BE of a satellite of mass 80 kg revolving in an orbit...

    Text Solution

    |

  16. If the radius of a circle increasing from 5 cm to 5.1 cm, then find th...

    Text Solution

    |

  17. what is the time period of revolution of a geostationary Satellite of ...

    Text Solution

    |

  18. A satellite revolving around the earth in a circular orbit has 4 times...

    Text Solution

    |

  19. The binding energy of a satellite of mass 1000 kg revolving in circula...

    Text Solution

    |

  20. The period of revolution of planet  around the sun is 8 times that of...

    Text Solution

    |