Home
Class 12
PHYSICS
If the angular momentum of an electron i...

If the angular momentum of an electron in an orbit is J, then the kinetic energy of the electron in that orbit is:

A

`J^2/(2M)`

B

`J^2/(2Mr^2)`

C

`J^2/(2pi)`

D

`2pi/(J^2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MBD PUBLICATION|Exercise QUESTION BANK|177 Videos
  • CIRCULAR MOTION

    MBD PUBLICATION|Exercise QUESTION BANK|238 Videos

Similar Questions

Explore conceptually related problems

Angular momentum of an electron in an orbital is given by:

The angular momentum of electron in nth orbit is given by:

The orbital angular momentum of an electron in 2s-orbital is:

The angular momentum of the electron in the second Bohr orbit is

The orbital angular momentum of an electron in the 5th Bohr orbit is

The angular momentum of electron of H atom is proportional to:

MBD PUBLICATION-ATOMIC PHYSICS-QUESTION BANK
  1. Speed of an electron in the first Bohr's orbit in a hydrogen atom is:

    Text Solution

    |

  2. A moving electron has energy 728 eV. It's velocity is:

    Text Solution

    |

  3. If the angular momentum of an electron in an orbit is J, then the kine...

    Text Solution

    |

  4. For an elctron in circular orbit around a nucleus the ratio of P.E. to...

    Text Solution

    |

  5. Velocity of electron in hydrogen atom in its first second and third or...

    Text Solution

    |

  6. The electron was moves around the nucleus in circular orbit of radii r...

    Text Solution

    |

  7. If the iconisation potential of the hydrogen atom is omega then it's e...

    Text Solution

    |

  8. The expression 1/lamda=R(1/p^2-1/n^2) after the Balmer's work is known...

    Text Solution

    |

  9. Rydberg constant is:

    Text Solution

    |

  10. Rydberg constant R is equal to:

    Text Solution

    |

  11. The dimensions of Rydberg constant are:

    Text Solution

    |

  12. Which of the following is true for an electron in a Bohr's orbit of hy...

    Text Solution

    |

  13. The binding energy of the electron in the energy of the electron in th...

    Text Solution

    |

  14. For ionising an excited hydrogen atom the energy required will be:

    Text Solution

    |

  15. The first excitation potential of given atom is 10.2 eV. Then the ioni...

    Text Solution

    |

  16. The ratio of energy of the hydrogen atom in its first and second excit...

    Text Solution

    |

  17. Energy of the lowest level of H-atom is-13.6 eV. The energy of the emi...

    Text Solution

    |

  18. Suppose the mass of electron decreases by 25%. How will it affect the ...

    Text Solution

    |

  19. The energy of an excited state of hydrogen is -13.6 eV?

    Text Solution

    |

  20. The series limit wavelength of the Balmer series for the hydrogen atom...

    Text Solution

    |