Home
Class 12
PHYSICS
When an electron jumps from a level n = ...

When an electron jumps from a level n = 4 to n = 1 , the momentum of the recoiled hydrogen atom will be

A

`6.5 xx 10^(-27) "Kgms"^(-1)`

B

`12.75 xx 10^(-19)"kgms"^(-1)`

C

`13.6 xx 10^(-27) "kgms"^(-1)`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    AAKASH SERIES|Exercise PROBLEM|24 Videos
  • ATOMS

    AAKASH SERIES|Exercise EXERCISE - I|21 Videos
  • ATOMS

    AAKASH SERIES|Exercise EXERCISE -II|35 Videos
  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|91 Videos
  • CAPACITORS

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (Integer Type Questions)|2 Videos
AAKASH SERIES-ATOMS-EXERCISE -III
  1. Calculate the impact parameter of a 5 MeV particle scattered by 90^(@)...

    Text Solution

    |

  2. Two electrons are revolving around a nucleus at distances 'r' and '4r'...

    Text Solution

    |

  3. When an electron jumps from a level n = 4 to n = 1 , the momentum of t...

    Text Solution

    |

  4. The energy change is greatest for a hydrogen atom when is state change...

    Text Solution

    |

  5. As the electron in Bohr orbit of hydrogen atom passes from state n = 2...

    Text Solution

    |

  6. The energy of an electron in an excited hydrogen atom is -3.4 eV. Then...

    Text Solution

    |

  7. The wavelength of first line of Lyman series in hydrogen atom is 1216 ...

    Text Solution

    |

  8. The ionization potential of H atoms is 13.6 V. The energy difference b...

    Text Solution

    |

  9. The radius of the Bohr orbit in the ground state of hydrogen atom is 0...

    Text Solution

    |

  10. The potential energy of an electron in the fifth orbit of hydrogen ato...

    Text Solution

    |

  11. If R is the Rydberg constant for gydrogen, then the wave number of the...

    Text Solution

    |

  12. If lambda(1) and lambda(2) are the wavelengths of the first members of...

    Text Solution

    |

  13. The ratio of maximum to minimum possible radiation energy in Bohr's hy...

    Text Solution

    |

  14. Frequency of the series limit of Balmer series of hydrogen atom interm...

    Text Solution

    |

  15. Given mass number of gold = 197 , density of gold = 19.7 g cm^(-3) , A...

    Text Solution

    |

  16. Transitions between three energy levels in a particular atom give rise...

    Text Solution

    |

  17. The electron in a hydrogen atom makes a transition from n = n(1) to n...

    Text Solution

    |

  18. An electron revolving in an orbit of radius 0.5 A^(@) in a hydrogen at...

    Text Solution

    |

  19. How many revolutions does an electron complete in one second in the fi...

    Text Solution

    |

  20. If one were to apply Bohr model to a particle of mass 'm' and charge '...

    Text Solution

    |