Home
Class 12
PHYSICS
An electron and a proton are separated b...

An electron and a proton are separated by a large distance and the electron approaches the proton with a kinetic energy of 2 eV. If the electron is captured by the proton to form a hydrogen atom in the ground state, what wavelength photon would be given off?

A

`2.4 eV`

B

`2.7 eV`

C

`2.9 eV`

D

`5.4 eV`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MODERN PHYSICS

    DC PANDEY|Exercise for JEE Advanced (More than One Options is Correct )|1 Videos

  • MODERN PHYSICS

    DC PANDEY|Exercise Metch the column|6 Videos

  • MODERN PHYSICS

    DC PANDEY|Exercise Integer Type Questions|17 Videos

  • MAGNETISM AND MATTER

    DC PANDEY|Exercise Medical gallery|1 Videos

  • MODERN PHYSICS - 1

    DC PANDEY|Exercise Level 2 Subjective|23 Videos

Similar Questions

Explore conceptually related problems

An electron and a proton are seperated by a large distance and the electorn approaches the proton with a kinectic energy of 2 eV. If the electron is captured by the proton to form a hydrogen atom in the ground state, what wavelength photon would be given off?

An electron and proton are separated by a large distance. The electron starts approaching the proton with energy 3 eV. The proton captures the electrons and forms a hydrogen atom in second excited state. The resulting photon is incident on a photosensitive metal of threshold wavelength 4000Å What is the maximum kinetic energy of the emitted photoelectron?

An electron approaches a fixed proton from a large distance with a kinetic energy of 12.2 eV. The electron gets captured by the proton to form a hydrogen atom in an excited state and a photon of wavelength lambda_(1) = 796 Å is emitted. Later, the hydrogen atom de-excites by emitting a single photon of wavelength lambda_(2) . Find lambda_(2) . [Take h = 6.62 xx 10^(– 34) Js, c = 3 xx 108 m//s ]

when an electron approaches a proton their electro static potnetial energy

An electron and a proton are accelerated by same voltage difference. Find the ratio of the de broglie wavelength of electron and proton

An electron and proton have the same de-Broglie wavelength. Then the kinetic energy of the electron is

An electron with kinetic energy 5eV is incident on a hydrogen atom in its ground state.The collision

An electron with kinetic energy 10 eV is incident on a hydrogen atom in its ground state. The collision

An electron with kinetic energy =E eV collides with a hydrogen atom in the ground state. The collision will be elastic

The ground state energy of hydrogen atom is -13.6eV . If the electron jumps to the ground state from the 3^("rd") excited state, the wavelength of the emitted photon is

DC PANDEY-MODERN PHYSICS-for JEE Advanced (only one option is Correct)
  1. The only source of energy in a particular star is the fusion reaction ...

    Text Solution

    |

  2. The de-Broglie wavlength of an electron emitted fromt the ground state...

    Text Solution

    |

  3. An electron and a proton are separated by a large distance and the ele...

    Text Solution

    |

  4. If light of wavelength of maximum intensity emitted from surface at te...

    Text Solution

    |

  5. When photon of wavelength lambda(1) are incident on an isolated sphere...

    Text Solution

    |

  6. The ground state and first excited state energies of hydrogen atom are...

    Text Solution

    |

  7. An electron is excited from a lower energy state to a higher energy st...

    Text Solution

    |

  8. The electron in a hydrogen atom makes a transition n(1) rarr n(2), whe...

    Text Solution

    |

  9. An electron in hydrogen atom first jumps from second excited state to ...

    Text Solution

    |

  10. The magnitude of energy, the magnitude of linear momentum and orbital ...

    Text Solution

    |

  11. The wavelengths and frequencies of photons in transition 1,2 and 3 for...

    Text Solution

    |

  12. Which of the following transition in He^(+) ion will give rise to a sp...

    Text Solution

    |

  13. Suppose the potential energy between an electron and a proton at a dis...

    Text Solution

    |

  14. Let A(n) be the area enclosed by the n^(th) orbit in a hydrogen atom. ...

    Text Solution

    |

  15. Hydrogen atom absorbs radiations of wavelength lambda0 and consequentl...

    Text Solution

    |

  16. The threshold wavelength for photoelectric emission for a material is ...

    Text Solution

    |

  17. From the following equation pick out the possible nuclear fusion react...

    Text Solution

    |

  18. In the Bohr model of the hydrogen atgom

    Text Solution

    |

  19. The mass number of a nucleus is.

    Text Solution

    |

  20. Photoelectric effect supports quantum nature of light because

    Text Solution

    |