Home
Class 11
PHYSICS
A satellite P is revolving around the ea...

A satellite `P` is revolving around the earth at a height =`h` radius of earth=`(R)` above equator. Another satellite `Q` is at a height =`2h` revolving in oppisite direction. At an instant the two are at same vertical line passing through centres of sphere. Find the least time of after which again they are in this situation.

A

It will continue to move with the same speed v along the original orbit of spacecraft

B

It will move with the same sprad, tangentally to the spacecraft.

C

It will fall down to earth gradually.

D

It will go very far in the space

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise Section - F Questions from Module|20 Videos

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise QUESTIONS PAPER Section - A|6 Videos

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise Section - D NCERT Exemplar Solutions (Long Answer Type Question )|5 Videos

  • LAW OF MOTION

    KUMAR PRAKASHAN|Exercise (QUESTION PAPER) SECTION-D|1 Videos

Similar Questions

Explore conceptually related problems

What will be velocity of a satellite revolving around the earth at a height h above surface of earth if radius of earth is R :-

A geostationary satellite is orbiting the earth at a height of 5R above the surface of the earth, 2R being the radius of the earth. The time period of another satellite in hours at a height of 2R form the surface of the earth is

A geostationary satellite is orbiting the earth at a height of 6R above the surface of the earth, where R is the radius of the earth. The time period of another satellite at a height of 2.5 R from the surface of the earth is …… hours.

A satellite of mass m revolves around the earth of radius R at a height x from its surface. If g is the acceleration due to gravity on the surface of the earth, the orbital speed of the satellite is

A satellite of mass m revolves around the earth of radius R at a height x from its surface. If g is the acceleration due to gravity on the surface of the earth, the orbital speed of the satellite is .........

A satellite is revolving in a circular orbit at a height 'h' from the earth's surface (radius of earth R, h ltlt R). The minimum increase in its orbital velocity required, So that the satellite could escape from the erth's gravitational field, is close to :(Neglect the effect of atomsphere.)

An artificial satellite is moving in a circular orbit around the earth with a speed of equal to half the magnitude of escape velocity from earth. (i). Determine the height of the satellite above the earth's surface (ii). If the satellite is stopped suddenly in its orbit and allowed to fall freely on the earth. Find the speed with it hits and surface of earth. Given M="mass of earth & R "="Radius of earth"

A satellite moves eastwards very near the surface of the Earth in equitorial plane with speed (v_(0)) . Another satellite moves at the same height with the same speed in the equatorial plane but westwards. If R =radius of the Earth and omega be its angular speed of the Earth about its own axis. Then find the approximate difference in the two time period as observed on the earth.

Two satellites of same mass m are revolving round of earth (mass M) in the same orbit of radius r. Rotational directions of the two are opposite therefore, they can collide. Total mechanical energy of the system (both satallites and earths) is (m lt lt M) :-

Two small balls having the same mass and charge and located on the same vertical at heights h_(1) and h_(2) are thrown in the same direction along the horizontal at the same velocity v. The first ball touches the ground at a horizontal distance R from the initial vertical position. At what height h_(2) will the second ball be at this instant? Neglect any frictional resistance of air and the effect of any induced charge on the ground.

KUMAR PRAKASHAN-GRAVITATION-Section - E Multiple Choice Questions (MCQs)
  1. The distance of two planets from the sun are 10^(13) m and 10^(12) m...

    Text Solution

    |

  2. The earth (mass = 6 xx 10^(24) kg) revolves around the sun with an an...

    Text Solution

    |

  3. A satellite P is revolving around the earth at a height =h radius of e...

    Text Solution

    |

  4. The acceleration due to gravity on the planet. A is 9 times the accele...

    Text Solution

    |

  5. Two spheres of masses m and M are situated in  air and the gravitation...

    Text Solution

    |

  6. The density of a newly discovered planet is twice that of earth. The a...

    Text Solution

    |

  7. Imagine a new planet having the same density as that of earth but it i...

    Text Solution

    |

  8. The earth is assumed to be a sphere of radius R. A platform is arrange...

    Text Solution

    |

  9. The figure shows elliptical orbit of a planet m about the sun S. The s...

    Text Solution

    |

  10. A particle of mass M is situated at the center of a spherical shell of...

    Text Solution

    |

  11. A particle of mass m is thrown upwards from the surface of the earth, ...

    Text Solution

    |

  12. Which one of the following plots represent the variation of gravitatio...

    Text Solution

    |

  13. Average densities of two planets is same but their radii are R1 and R2...

    Text Solution

    |

  14. Escape velocity for earth surface is 11 km/s. If the radius of any pla...

    Text Solution

    |

  15. If v0 be the orbital velocity of a satellite in a circular orbit clos...

    Text Solution

    |

  16. The motion of planet in the solar system is an example of the conserva...

    Text Solution

    |

  17. The condition for a uniform spherical mass m of radius r to be a black...

    Text Solution

    |

  18. The force of gravitation is .........

    Text Solution

    |

  19. Geo-stationary satellite is at …... height from surface of Earth.

    Text Solution

    |

  20. Which of the following statement is true?

    Text Solution

    |