Home
Class 12
PHYSICS
Find the value of angular momentum of an...

Find the value of angular momentum of an electron in the `4^(th)` orbit of an atom.

Text Solution

Verified by Experts

`L="nh"/(2pi)`
n=4 ,
`L=(4xx6.6xx10^(-34))/(2xx3.14)=26.4/6.28xx10^(-34)`
`=4.20xx10^(-34)` Js
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    MODERN PUBLICATION|Exercise COMPETITION FILE (Objective A(MCQs) )|16 Videos

  • ATOMS

    MODERN PUBLICATION|Exercise COMPETITION FILE ( Objective B (MCQs))|20 Videos

  • ATOMS

    MODERN PUBLICATION|Exercise Revision Exercise (Long Answer )|5 Videos

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|16 Videos

  • CURRENT ELECTRICITY

    MODERN PUBLICATION|Exercise Chapter Practice Test|15 Videos

Similar Questions

Explore conceptually related problems

The angular momentum of the electron in the third orbit of H atom is

Calculate the angular momentum of an electron in the second orbit of an atom ?

The angular momentum of an electron in n^(th) orbit is given by

The orbital angular momentum of a p- electron is

Calculate angular momentum of electron in 7th Bohr orbit of Hydrogen atom ?

The angular momentum of electron in n^(th) orbit is given by

The value of orbit angular momentum of an electron in the 3^(rd) Bohr orbit of hydrogen will be

What is the angular momentum of an electron in the 3^(rd) Bohr orbit of Hydrogen atom?

MODERN PUBLICATION-ATOMS -Revision Exercise (Numerical Problems )
  1. Calculate the energy of an a-particle if in a collision of this partic...

    Text Solution

    |

  2. (a) Name different series of lines observed in hydrogen spectrum. (b...

    Text Solution

    |

  3. Find the value of angular momentum of an electron in the 4^(th) orbit ...

    Text Solution

    |

  4. Calculate the period of revolution of an electron revolving in the fir...

    Text Solution

    |

  5. Obtain the expression for the ratio of the de Broglie wavelengths asso...

    Text Solution

    |

  6. What is the shortest wavelength present in the Paschen series of spect...

    Text Solution

    |

  7. If the wavelength of Halpha line of Balmer seriesin hydrogen spectrum ...

    Text Solution

    |

  8. Given that the Bohr radius of hydrogen atom is 5.3xx10^(-11) m . Deter...

    Text Solution

    |

  9. The electron in a hydrogen atom initially in state of quantum number n...

    Text Solution

    |

  10. In the ground state of hydrogen atom, its Bohr radius is 5.3xx10^(-11)...

    Text Solution

    |

  11. (a) The radius of the innermost electron orbit of a hydrogen atom is 5...

    Text Solution

    |

  12. (a) Calculate the kinetic energy and potential energy of the electron ...

    Text Solution

    |

  13. Calculate the energy required to excite an electron from ground state ...

    Text Solution

    |

  14. A hydrogen atom in its excited state emits radiations of wavelengths 1...

    Text Solution

    |

  15. Find the ratio between the wavelength of the most energetic' spectral ...

    Text Solution

    |

  16. The period of revolution of electron in the third orbit in a H-atom is...

    Text Solution

    |

  17. Find out the ratio of energies of photons produced when an electron (i...

    Text Solution

    |

  18. Draw the energy-level diagram of hydrogen atom. Show the Lyman series ...

    Text Solution

    |

  19. A 12.5 eV electron beam is used to bombard gaseous hydrogen at room te...

    Text Solution

    |

  20. Given the ground state energy E0 = -13.6 eV and Bohr radius a0 = 0.53 ...

    Text Solution

    |