Home
Class 12
PHYSICS
If a hydrogen atom emit a photon of ener...

If a hydrogen atom emit a photon of energy `12.1 eV` , its orbital angular momentum changes by `Delta` L. then `Delta` L equals

A

`1.05xx10^(-34)` Js

B

`2.11xx10^(-34)` Js

C

`3.16xx10^(-34)` Js

D

`4.22xx10^(-34)` Js

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    AAKASH SERIES|Exercise EXERCISE - II|19 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

  • CAPACITORS

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (Integer Type Questions)|2 Videos

Similar Questions

Explore conceptually related problems

When a hydrogen atoms emits a photon of energy 12.1 eV , its orbital angular momentum changes by (where h os Planck's constant)

An isolated hydrogen atom emits a photon of energy 9 eV. Find momentum of the photons

An isolated hydrogen atom emits a photon of energy 9 eV. Find momentum of the photons

A hydrogen atom in ground state absorbs 12.09 eV of energy . The orbital angular momentum of the electron

A hydrogen atom in ground state absorbs 12.09 eV of energy . The orbital angular momentum of the electron

When an electron in the hydrogen atom in ground state absorb a photon of energy 12.1eV , its angular momentum

A hydrogen atom in ground state absorbs 10.2eV of energy .The orbital angular momentum of the electron is increases by

A hydrogen atom is in a state with energy -1.51 eV. in the Bohr model, what is the angular momentum of the electron in the atom with respect to an axis at the nucleus?

The minimum orbital angular momentum of the electron in a hydrogen atom is

An isolated hydrogen atom emits a photon of 10.2 eV . (i) Determine the momentum of photon emitted (ii) Calculate the recoil momentum of the atom (iii) Find the kinetic energy of the recoil atom [Mass of proton = m_(p) = 1.67 xx 10^(-27) kg ]

AAKASH SERIES-ATOMS-PRACTICE EXERCISE
  1. Hydrogen atom emits blue light when it jumps from n=4 energy level to ...

    Text Solution

    |

  2. The separation energy of the electron presetn in the shell n =3 is 1.5...

    Text Solution

    |

  3. Radius of first orbit of hydrogen is 0.53 Å. The radius in fourth orbi...

    Text Solution

    |

  4. The electrons in hydrogen atoms are raised from ground state to third ...

    Text Solution

    |

  5. For H^(+) and Na^(+) the values of lambda^(@) are 349.8 and 50.11 resp...

    Text Solution

    |

  6. Calculated the energy required to excite one litre of hydrogen gas at ...

    Text Solution

    |

  7. The ratio of the energies of the hydrogen atom in its first excited st...

    Text Solution

    |

  8. Find the ratio of wavelengths of first line of Lyman series and second...

    Text Solution

    |

  9. Calculated the energy required to excite one litre of hydrogen gas at ...

    Text Solution

    |

  10. In Bohr's model of the hydrogen atom, the ratio between the period of ...

    Text Solution

    |

  11. The radius of the first orbit of hydrogen in 0.528 overset(0)A. The ra...

    Text Solution

    |

  12. The ovary is half inferior in flowers of

    Text Solution

    |

  13. The circumference of first orbit of hydrogen atom is .S.. Then the Bro...

    Text Solution

    |

  14. In hydrogen spectrum L(alpha) line arises due to transition of electro...

    Text Solution

    |

  15. If a hydrogen atom emit a photon of energy 12.1 eV , its orbital angul...

    Text Solution

    |

  16. Energy levels A,B,C of an atom are shown below If E(A)ltE(B)ltE(C...

    Text Solution

    |

  17. An electron, in a hydrogen like atom , is in excited state. It has a t...

    Text Solution

    |

  18. What is the energy of state in a triply ionized beryllium (Be^(+++)) w...

    Text Solution

    |

  19. A stationary hydrogen atom emits photon corresponding to the first lin...

    Text Solution

    |

  20. The radius of the first orbit of hydrogen is rH and the energy in th...

    Text Solution

    |