Home
Class 12
PHYSICS
An object is projected in upward directi...

An object is projected in upward direction with speed `sqrt((gR)/6)` from height h= 2R above the surface of earth. The speed with which the object will collide the earth surface. (Neglect the air drag, R us the radius of the earth and M is mass of earth

A

`sqrt((3GM)/(2R))`

B

`sqrt((3GM)/(R))`

C

`sqrt((5GM)/(2R))`

D

`sqrt((6GM)/(7R))`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|21 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|63 Videos

  • TEST 2

    AAKASH INSTITUTE ENGLISH|Exercise Exercise|308 Videos

Similar Questions

Explore conceptually related problems

An object is dropped from height h=2 R on the surface of earth. Find the speed with which it will collide with ground by neglecting effect of air. (Where R is radius of earth, take mass of earth M)

An object is released from a height twice the radius of the earth on the surface of earth. Find the speed with which it will collide with group by neglecting effect of air. (Take, R radius of earth and mass of earth as M)

An object is projected horizontally with speed 1/2 sqrt((GM)/R) , from a point at height 3 R [ where R is radius and M is mass of earth , then object will ]

A ball is projected upwards from a height h above the surface of the earth with velocity v. The time at which the ball strikes the ground is

A ball is projected upwards from a height h above the surface of the earth with velocity v. The time at which the ball strikes the ground is

A body is projected vertically upwards with a speed of sqrt((GM)/R) ( M is mass and R is radius of earth ) . The body will attain a height of

The height above the earth s surface at which the weight of a person becomes 1/4th of his weight on the surface of earth is (R is the radius of earth)

A particle is launched from a height 8R above the surface of earth and it is given a speed ((GM)/(8R)) parallel to the surfaces then

A body is projected vertically upwards with speed sqrt(g R_(e )) from the surface of earth. What is the maximum height attained by the body ? [ R_(e ) is the radius of earth, g is acceleration due to gravity]

A satellite of mass m is revolving around the Earth at a height R above the surface of the Earth. If g is the gravitational intensity at the Earth’s surface and R is the radius of the Earth, then the kinetic energy of the satellite will be:

AAKASH INSTITUTE ENGLISH-TEST 1-EXERCISE
  1. An object is projected in upward direction with speed sqrt((gR)/6) fro...

    Text Solution

    |

  2. If a diaelectric material of dielectric constantepsilonr is completely...

    Text Solution

    |

  3. Two identical electric dipoles of dipole moments p are placed as shown...

    Text Solution

    |

  4. Four point charges each of magnitude Q and mass m are moving on circul...

    Text Solution

    |

  5. Positive charge is uniformly distrubuted with volume charge density rh...

    Text Solution

    |

  6. A wire AMB is placed along y-axis having linear charge density lambda ...

    Text Solution

    |

  7. Two identical point charges are placed at A and B. The potential diffe...

    Text Solution

    |

  8. The magnitude electric potential difference between A and B for a give...

    Text Solution

    |

  9. The uniform electric field is along positive y-axis positive x axis ...

    Text Solution

    |

  10. A short electric dipole having dipole moment overline rho is placed a...

    Text Solution

    |

  11. There are three conducting concentric spherical shells having charges ...

    Text Solution

    |

  12. there are two concentric metallic shells of radii R and 2R, if outer ...

    Text Solution

    |

  13. An uncharged metallic solid sphere of radius R is placed at a distance...

    Text Solution

    |

  14. There are two concentric conducting spherical shells of radii 10 cm an...

    Text Solution

    |

  15. A parallel plate capacitor (not connected with battery) have charge Q0...

    Text Solution

    |

  16. An arrangement of five identical capacitors are shown in given circuit...

    Text Solution

    |

  17. A parallel plate capacitor charged to potential difference V0 . The va...

    Text Solution

    |

  18. The area of cross section of a uniform cylindrical conducting wire is ...

    Text Solution

    |

  19. Which one of the following relations is incorrect ? ( Symbols have the...

    Text Solution

    |

  20. If two conducting wires Aand B of same dimensions have electron densit...

    Text Solution

    |

  21. A current carrying conductor is connected with a cell, after some time...

    Text Solution

    |