Home
Class 11
PHYSICS
Two planets are revolving around a star ...

Two planets are revolving around a star and the ratio of their average orbital radii is 2:1 . Determine the ratio of their time periods.

Text Solution

Verified by Experts

The correct Answer is:
`2sqrt(2):1`
Promotional Banner

Topper's Solved these Questions

  • NEWTONIAN GRAVITATION AND PLANETARY MOTION

    CHHAYA PUBLICATION|Exercise PROBLEM SET -II|29 Videos

  • NEWTONIAN GRAVITATION AND PLANETARY MOTION

    CHHAYA PUBLICATION|Exercise PROBLEM SET -II (Hots Numerical Problems)|14 Videos

  • NEWTONIAN GRAVITATION AND PLANETARY MOTION

    CHHAYA PUBLICATION|Exercise EXERCISE (Short Answer Type Questions-II)|4 Videos

  • NEWTON'S LAWS OF MOTION

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|24 Videos

  • ONE - DIMENSIONAL MOTION

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|19 Videos

Similar Questions

Explore conceptually related problems

If the ratio of the volumes of two solid spheres is 8 : 27 then the ratio of their radii is

Two small artificial satellite are revolving around the earth in two circular orbits of radii r and (r+Deltar) . If their time periods of revolution are T and T+Delta T , then (Deltar lt lt r, DeltaT lt lt T)

Multiple Choice Questions (MQC) If the ratio of the radii of two solid right circular cylinder is 3 : 4 and the ratio of their curved surface area is 1 : 2, then the ratio of their height is

The ratio of acceleration due to gravity g_1:g_2 on the surface of two planets is 5:2 and the ratio of their respective average densities rho_1:rho_2 is 2:1 . What is the ratio of respective escape velocities v_1:v_2 from the surface of the planets?

The ratio of the volumes of two right circular cones is 1:4 and the ratio of their lengths of radii of the bases is 4:5 then the ratio of their heights is

If the ratio of the radii of two spheres be 1 : 2, then find the ratio of their curved surfac areas.

If the ratio of the volumes of two right circular cones is 16 : 27 and the ratio of their height is 4 : 3, then the ratio of their radii is

The ratio of accelerations due to gravity g_(1):g_(2) on the surfaces of two planets is 5:2 and the ratio of their respective average densities p_(1):p_(2) is 2:1. What is the ratio of respective escape velocities v_(1):v_(2) from the surface of the planets?

Two satellites A and B are revolving along circular paths of the same radius. The mass of A is 16 times the mass of B. The ratio of the time period of revolution of B to that of A is

The ratio of radii of two solid cylinders is 3 : 2 and the ratio of their heights is 2 : 3, then the ratio of their volume is

CHHAYA PUBLICATION-NEWTONIAN GRAVITATION AND PLANETARY MOTION-PROBLEM SET -I
  1. Show that if the earth stops rotating about its axis, then the acceler...

    Text Solution

    |

  2. Choose the correct alternative : (i) Acceleration due to gravity (in...

    Text Solution

    |

  3. Choose the correct alternative : (ii) Acceleration due to gravity (i...

    Text Solution

    |

  4. Choose the correct alternative : (iii) Acceleration due to gravity i...

    Text Solution

    |

  5. Choose the correct alternative : (iv) The formula -GMm(1//r2-1//r1) ...

    Text Solution

    |

  6. If both the radius and the mean density of a planet are half the radi...

    Text Solution

    |

  7. Calculate the angular velocity of the earth for which effective accele...

    Text Solution

    |

  8. Find the percentage decrease in the weight of a body when taken 32 km...

    Text Solution

    |

  9. The density of a planet is 1/3 rd that of the earth and its radius is ...

    Text Solution

    |

  10. Determine the value of the escape velocity from the surface of the moo...

    Text Solution

    |

  11. The radius of a planet is double than that of the earth but their aver...

    Text Solution

    |

  12. How much energy would be needed for a body of mass 10 kg to escape fro...

    Text Solution

    |

  13. The planet Mercury revolves around the sun once in 88 days. If the mea...

    Text Solution

    |

  14. Two planets are revolving around a star and the ratio of their average...

    Text Solution

    |

  15. An artificial satellite revolves around the earth in a circular path ...

    Text Solution

    |

  16. Let us assume that our galaxy consists of 2.5xx10^(11) stars each of o...

    Text Solution

    |

  17. Choose the correct alternative: (i) If the zero of potential energy ...

    Text Solution

    |

  18. Choose the correct alternative: (ii) The energy required to launch a...

    Text Solution

    |

  19. A satellite of mass 1000 kg moves in a circular orbit of radius 7000 k...

    Text Solution

    |

  20. An artificial satellites is revolving at a height of 500 km above the ...

    Text Solution

    |