Home
Class 11
PHYSICS
The condition for a uniform spherical ma...

The condition for a uniform spherical mass `m` of a radius `r` to be a black hole is [`G` =gravitational constant and `g`=acceleration due to gravity]

A

`(2Gm//r)^(1//2) lt c`

B

`(2Gm//r)^(1//2) = c`

C

`(2Gm//r)^(1//2) ge c`

D

`(gm//r)^(1//2) ge c`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    ERRORLESS |Exercise CT|18 Videos

  • GRAVITATION

    ERRORLESS |Exercise GQ|10 Videos

  • GRAVITATION

    ERRORLESS |Exercise Motion of Satellite|67 Videos

  • FRICTION

    ERRORLESS |Exercise MCQ S|125 Videos

  • MOTION IN ONE DIMENSION

    ERRORLESS |Exercise Motion In One Dimension|24 Videos

Similar Questions

Explore conceptually related problems

Gravitational constant : scalar quantity : : acceleration due to gravity : ______ .

Gravitation - Acceleration Due To Gravity

A particle of mass m is thrown upwards from the surface of the earth, with a velocity u . The mass and the radius of the earth are, respectively, M and R . G is gravitational constant g is acceleration due to gravity on the surface of earth. The minimum value of u so that the particle does not return back to earth is

Statement-1 :The universal gravitational constant is same as acceleration due to gravity. Statement-2 :Gravitional constant and acceleration due to gravity have different dimensional formula

If g_(e) is acceleration due to gravity on earth and g_(m) is acceleration due to gravity on moon, then

What is the effect of mass of the body on acceleration due to gravity (g)?

Assuming the earth to be a homogeneous sphere of radius R , its density in terms of G (constant of gravitation) and g (acceleration due to gravity on the surface of the earth)

Assuming the earth to be a homogencous sphere of radius R. its density in terms of G (constant of gravitation) and g (acceleration due to gravity on the surface of the earth )is

ERRORLESS -GRAVITATION-Kepler’s Laws of Planetary Motion
  1. The distance of a planet from the sun is 5 times the distance between ...

    Text Solution

    |

  2. A planet is revolving around the sun as shown in elliptical path. The ...

    Text Solution

    |

  3. In the previous question, the orbit velocity of the planet will be mi...

    Text Solution

    |

  4. The radius of orbit of a planet is two times that of the earth. The ti...

    Text Solution

    |

  5. The orbital angular momentum of a satellite revolving at a distance r ...

    Text Solution

    |

  6. According to Kepler’s law the time period of a satellite varies with i...

    Text Solution

    |

  7. In planetary motion the areal velocity of possition vector of a planet...

    Text Solution

    |

  8. The ratio of the distances of two planets from the sun is 1.38. The ra...

    Text Solution

    |

  9. Kepler's second law is a consequence of

    Text Solution

    |

  10. In an elliptical orbit under gravitational force, in general

    Text Solution

    |

  11. If a new planet is discovered rotating around Sun with the orbital rad...

    Text Solution

    |

  12. Suppose the law of gravitational attraction suddenly changes and becom...

    Text Solution

    |

  13. What does not change in the field of central force

    Text Solution

    |

  14. The eccentricity of the earth's orbit is 0.0167, the ratio of its maxi...

    Text Solution

    |

  15. What is the mass of the planet that has a satellite whose time period ...

    Text Solution

    |

  16. If the orbital velocity of a planet is given by v = G^(a) M^(b) R^(c )...

    Text Solution

    |

  17. Hubble's law states that the velocity with which milky way is moving a...

    Text Solution

    |

  18. Two satellite are revolving around the earth with velocities v(1) and ...

    Text Solution

    |

  19. The condition for a uniform spherical mass m of a radius r to be a bla...

    Text Solution

    |

  20. Earth is revolving around the sun if the distance of the Earth from th...

    Text Solution

    |