Home
Class 11
PHYSICS
One can easily "weigh the earth" by calc...

One can easily "weigh the earth" by calculating the mass of earth using the formula (in usual notation)

A

`G/gR_E^2`

B

`g/GR_E^2`

C

`g/GR_E`

D

`G/gR_E^3`

Text Solution

Verified by Experts

The correct Answer is:
B
`g=(GM_E)/(R_E)rArrM_E=(gR_E^2)/G`
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Acceleration Due to Gravity)|39 Videos

  • GRAVITATION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Gravitation Potential, Energy and Escape Velocity)|38 Videos

  • FRICTION

    ERRORLESS|Exercise ASSERTION & REASON |8 Videos

  • KINETIC THEORY OF GASES

    ERRORLESS|Exercise ASSERTION AND REASON |16 Videos

Similar Questions

Explore conceptually related problems

If you had to calculate the mass of the earth , how would you do it ?

Can you calculate mass of earth from Newton's law of gravitition ?

A geostationary satellite is nearly at a height of h = 6 R from the surface of the earth where R is the radius of the earth. Calculate the area on the surface of the earth in which the communication can be made using this satellite.

Can you calculate density of earth from Newton's law of gravitation?

What will be the formula of mass of the earth in terms of g , R and G ?

Given that the mass of the earth is 81.5 times the mass of the moon and the diameter of the moon is 0.27 times that of the earth . Calculate the value of acceleration due to gravity at the surface of the moon . Given 'g' on the earth = 9.8 ms^(-2)

ERRORLESS-GRAVITATION-Assertion and Reason
  1. One can easily "weigh the earth" by calculating the mass of earth usin...

    Text Solution

    |

  2. Statement I: The smaller the orbit of a planet around the Sun, the sho...

    Text Solution

    |

  3. Statement -1: Gravitational force between two particles is negligibly ...

    Text Solution

    |

  4. Assertion: There is no effect of rotation of a earth on acceleration d...

    Text Solution

    |

  5. Assertion : We can not move even a finger without disturbing all the s...

    Text Solution

    |

  6. Assertion : If a pendulum falls freely, then its time period becomes i...

    Text Solution

    |

  7. Statement I: If the earth suddenly stops rotating about its axis, then...

    Text Solution

    |

  8. Assertion : The difference in the value of acceleration due to gravity...

    Text Solution

    |

  9. Assertion: For the plantes orbiting around the sun, angular speed, lin...

    Text Solution

    |

  10. Assertion : A force act upon the earth revolving in a circular orbit...

    Text Solution

    |

  11. Assertion: The speed of revolution of an artificial satellite revoving...

    Text Solution

    |

  12. Assertion : Gravitational potential of earth at every place on it is...

    Text Solution

    |

  13. Assertion : Even when orbit of a satellite is elliptical, its plane of...

    Text Solution

    |

  14. Assertion : A planet moves faster, when it is closer to the sun in i...

    Text Solution

    |

  15. Assertion : Orbital velocity of a satellite is greater than its esca...

    Text Solution

    |

  16. Assertion : The speed of satellite always remains constant in an orb...

    Text Solution

    |

  17. Assertion : Earth has an atmosphere but the moon does not. Reason ...

    Text Solution

    |

  18. Assertion: The time period of geostationary satellite is 24 hrs. Rea...

    Text Solution

    |

  19. Assertion : The principle of superposition is not valid for gravitat...

    Text Solution

    |

  20. Assertion: Two different planets have same escape velocity. Reason:...

    Text Solution

    |

  21. Assertion: The time period of revolution of a satellite close to surfa...

    Text Solution

    |