Home
Class 11
PHYSICS
In Bohr’s model, the atomic radius of th...

In Bohr’s model, the atomic radius of the first orbit is r. Then, the radius of the third orbit is

Text Solution

Verified by Experts

`implies` At on point B. Because, when planet is near to sun its speed is greater.
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise Section - D NCERT Exemplar Solutions (Multiple Choice Questions (MCQs))|15 Videos

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise Section - D NCERT Exemplar Solutions (MIultiple Choice Questions (More than one options) )|1 Videos

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise Section - C Objective Questions (VSQs) (Answer the following questions In short :)|11 Videos

  • LAW OF MOTION

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

Similar Questions

Explore conceptually related problems

If the radius of the second orbit in hydrogen atom is R then radius of the third orbit is ........

A single electron orbits a stationary nucleus of charge + Ze , where Z is a constant and e is the magnitude of electronic charge . It requires 47.2 eV to excite . Find a the value of Z b the energy required to excite the electron from the third to the fourth Bohr orbit. the wavelength of electromagnetic rediation required to remove the electron from the first Bohr orbit to infinity. d Find the KE,PE , and angular momentum of electron in the first Bohr orbit. e the redius of the first Bohr orbit [The ionization energy of hydrogen atom = 13.6 eV Bohr radius = 5.3 xx 10^(_11) m , "velocity of light" = 3 xx 10^(-8)jm s ^(-1) , Planck's constant = 6.6 xx 10^(-34)j - s]

In Bohr’s model of an atom which of the following is an integral multiple of h/2π?

The gravitational attraction between electron and proton in a hydrogen atom is weaker than the coulomb attraction by a factor of about 10^(-40) . An alternative way of looking at this fact is to estimate the radius of the first Bohr orbit of a hydrogen atom if the electron and proton were bound by gravitational attraction. You will find the answer interesting.

Caculate the energy associated with the first orbit of He^(+) .What is the radius of this orbit ?

(i) The energy associated with the first orbit in the hydrogen atom is -2.18 xx 10^(18) J atom^(-1) what is the energy associated with the fifth orbit ? (ii) Calculate the radius of Bohr. fifth orbit for hydrogen atom

Find the radius of first second third orbit of hydrogen

If the atom (_100)Fm^(257) follows the Bohr model the radius of _(100)Fm^(257) is n time the Bohr radius , then find n .

KUMAR PRAKASHAN-GRAVITATION-Section - C Objective Questions (VSQs)
  1. Find the kinetic energy needed to project a body of mass m from the su...

    Text Solution

    |

  2. What is the escape velocity from a black hole ?

    Text Solution

    |

  3. As astronaut dropped a spoon from outside spacecraft will the spoon re...

    Text Solution

    |

  4. Give the name of first Indian Astronaut.

    Text Solution

    |

  5. What is the frequency of oscillation of a  pendulum mounted in a lift ...

    Text Solution

    |

  6. Distance of two planets from the sun are 10^11 m and 10^(10) m respec...

    Text Solution

    |

  7. In Bohr’s model, the atomic radius of the first orbit is r. Then, the ...

    Text Solution

    |

  8. If any satellite has kinetic energy 6 xx 10^(9)J , then what its poten...

    Text Solution

    |

  9. A satellite has potential energy -8 xx 10^(9)J, then what is its bindi...

    Text Solution

    |

  10. The ratio between Bohr radii is

    Text Solution

    |

  11. What are the factors on which escape velocity depends on ?

    Text Solution

    |

  12. The period of revolution of a satellite in an orbit becomes 8 times th...

    Text Solution

    |

  13. Why rocket does not have escape energy ?

    Text Solution

    |

  14. Why satellite does not have escape velocity ?

    Text Solution

    |

  15. What is the direction of rotation of polar satellite ?

    Text Solution

    |

  16. In what direction does earth rotate ?

    Text Solution

    |

  17. Why we can observed a whole surface of earth with the help of polar sa...

    Text Solution

    |

  18. When a body brought from infinity to r distance, its potential energy ...

    Text Solution

    |

  19. Give the revolution period of our moon around the earth and rotation p...

    Text Solution

    |

  20. What is the gravitational potential at infinity distance from the cent...

    Text Solution

    |