Home
Class 12
PHYSICS
A planet is moving in an elliptical path...

A planet is moving in an elliptical path around the sun as shown in figure. Speed of planet in positions P and Q are `V_(1)` and `V_(2)` respectively with `SP=r_(1)` and `SQ=r_(2)` , then `v_(1)//v_(2)` is equal to

A

`(r_(1))/(r_(2))`

B

`(r_(2))/(r_(1))`

C

`((r_(2))/(r_(1)))^(2)`

D

`((r_(1))/(r_(2)))^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|37 Videos
  • INTERFERENCE AND DIFFRACTION OF LIGHT

    DC PANDEY ENGLISH|Exercise Level 2 Subjective|5 Videos

Similar Questions

Explore conceptually related problems

A planet of mass m is moving in an elliptical orbit about the sun (mass of sun = M). The maximum and minimum distances of the planet from the sun are r_(1) and r_(2) respectively. The period of revolution of the planet wil be proportional to :

A particle is moving in a circle of radius r with speed v as shown in the figure. The magnitude of change in velocity in moving from P to Q is

A particle is moving in a circle of radius r with speed v as shown in the figure. The magnitude of change in velocity in moving from P to Q is

Find V_(P)-V_(Q) in the circuit shown in figure.

A planet orbits the sun in an elliptical path as shown in the figure. Let v_(p) " and " v_(A) be spped of the planet when at perohelion and aphelion respectively. Which of the following relations is correct ?

A planet of mass m moves around the Sun of mass Min an elliptical orbit. The maximum and minimum distance of the planet from the Sun are r_(1) and r_(2) , respectively. Find the relation between the time period of the planet in terms of r_(1) and r_(2) .

A planet of mass m revolves in elliptical orbit around the sun of mass M so that its maximum and minimum distance from the sun equal to r_(a) and r_(p) respectively. Find the angular momentum of this planet relative to the sun.

A planet is revolving in an elliptical orbit around the sun. Its closest distance from the sun is r and the farthest distance is R. If the velocity of the planet nearest to the sun be v and that farthest away from the sun be V. then v/V is

Three capacitors C_(1),C_(2) and C_(3) are connected as shown in, The potentials of P,Q , and R are V_(1),V_(2), and V_(3) , respectively. Find the potential V_(0) at the function O . .

In the figure shown a planet moves in an elliptical orbit around the sun. Compare the speeds, linear and angular momenta at the points A and B .

DC PANDEY ENGLISH-GRAVITATION-All Questions
  1. If the radius of the earth were increased by a factor of 2 keeping the...

    Text Solution

    |

  2. A satellite of mass m moves along an elliptical path arouned the eart...

    Text Solution

    |

  3. A planet is moving in an elliptical path around the sun as shown in fi...

    Text Solution

    |

  4. The period of revolution of an earth satellite close to surface of ear...

    Text Solution

    |

  5. The acceleration due to gravity on the moon is only one sixth that of ...

    Text Solution

    |

  6. The acceleration due to gravity near the surface of a planet of radius...

    Text Solution

    |

  7. A geo-stationary satellite orbits around the earth in a circular orbit...

    Text Solution

    |

  8. A person brings a mass 2kg from A to B. The increase in kinetic energy...

    Text Solution

    |

  9. If the angular velocity of a planet about its own axis is halved, the ...

    Text Solution

    |

  10. A planet of mass m is in an elliptical orbit about the sun with an orb...

    Text Solution

    |

  11. If the radius of the earth were to shrink by one percent its mass rema...

    Text Solution

    |

  12. If g be the acceleration due to gravity of the earth's surface, the ga...

    Text Solution

    |

  13. A simple pendulum has a time period T(1) when on the earth's surface a...

    Text Solution

    |

  14. If the distance between the earth and the sun were reduced to half its...

    Text Solution

    |

  15. A satellite S is moving in an elliptical orbit around the earth. The m...

    Text Solution

    |

  16. Two identical spherical masses are kept at some distance. Potential en...

    Text Solution

    |

  17. A body of mass m is kept at a small height h above the ground. If the ...

    Text Solution

    |

  18. The ratio of energy required to raise a satellite to a height h above ...

    Text Solution

    |

  19. The gravitational field due to a mass distribution is E=(A)/(x^(2)) in...

    Text Solution

    |

  20. A uniform ring of mass m and radius a is placed directly above a unifo...

    Text Solution

    |