Home
Class 12
PHYSICS
The earth revolves round the sun in one ...

The earth revolves round the sun in one year. If the distance between them becomes double, the new period of revolution will be

A

`4sqrt(2)` years

B

`2sqrt(2)` years

C

4 years

D

8 years

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

State two conditions to obtain sustained interference of light. In young's double slit experiment, using light of wavelength 400 nm, interference fringes of width X are obtained. The wavelength of light is increased to 600 nm and the separation between the slits is halved. if one wants the observed fringe width on the screen to be the same in the two cases, find the ratio of the distance between the screen and the plane of the slits in the two arrangements.

The gravitational force between two bodies is 1 N. If the distance of these two bodies is doubled, what will be the force of attraction between them ?

Consider different planets revolving in different circular orbits around a star of very large mass. If the gravitatonal force between the planet and the star varies as r^((-5)/2), r = distance between them. How does the square of the orbital period T depend on the distance r?

The time period of a satellite of earth is 5 hours. If the separation between the centre of earth and the satellite is increased to 4 times the previous value, the new time period will become-

The small dense stars rotate about their common centre of mass as a binary system, each with a period of 1 year. One star has mass double than that of the other, while mass of the lighter star is one-third the mass of the Sun. The distance between the two stars is r and the distance of the earth from the Sun is R , find the relation between r and R .

A new unit of length is chosen such that the speed of light in vecuum is unity. What is the distance between the sun and the earth in terms of the new unit, if light takes 8 min and 20 sec. to cover the distance ?

If the mass of two bodies is doubled and the distance of two bodies also doubled, the new gravitational force becomes what ?

In Young's double slit experiment, the distance between two slits is made three times then the fringe width will become ......

A body is released from a great height and falls freely towards the earth. Exactly one sec later another body is released. What is the distance between the two bodies 2 sec after the release of the second body ?

ALLEN -GRAVITATION-EXERCISE 1
  1. A planet is moving in an elliptic orbit. If T,V,E and L stand, respect...

    Text Solution

    |

  2. The gravitational force between two objects is proportional to 1//R (a...

    Text Solution

    |

  3. What will be velocity of a satellite revolving around the earth at a h...

    Text Solution

    |

  4. Two satellites of masses of m(1) and m(2)(m(1)gtm(2)) are revolving ro...

    Text Solution

    |

  5. Orbital radius of a satellite S of earth is four times that s communic...

    Text Solution

    |

  6. If a satellite is orbiting the earth very close to its surface, then t...

    Text Solution

    |

  7. Two identical satellites are at the heights R and 7R from the earth's ...

    Text Solution

    |

  8. The minimum projection velocity of a body from the earth's surface so ...

    Text Solution

    |

  9. Geostationary satellite :-

    Text Solution

    |

  10. The maximum and minimum distance of a comet form the sun are 8xx10^(12...

    Text Solution

    |

  11. A satellite of mass m goes round the earth along a circular path of ra...

    Text Solution

    |

  12. Near the earth's surface time period of a satellite is 4 hrs. Find its...

    Text Solution

    |

  13. A communication satellite of earth which takes 24 hrs. to complete one...

    Text Solution

    |

  14. Escape velocity for a projectile at earth's surface is V(e). A body is...

    Text Solution

    |

  15. For a satellite moving in an orbit around the earth, ratio of kinetic ...

    Text Solution

    |

  16. The orbital velocity of an satellite in a circular orbit just above th...

    Text Solution

    |

  17. The earth revolves round the sun in one year. If the distance between ...

    Text Solution

    |

  18. A satellite of mass m revolves in a circular orbit of radius R a round...

    Text Solution

    |

  19. A satellite is orbiting earth at a distance r. Variations of its kinet...

    Text Solution

    |

  20. The mean distance of Mars from the sun in 1.524 times that of the Eart...

    Text Solution

    |