Home
Class 12
PHYSICS
At what minimum kinetic energy must a hy...

At what minimum kinetic energy must a hydrogen atom move for it's inelastic headon collision with another stationary hydrogen atom so that one of them emits a photon? Both atoms are supposed to be in the ground state prior to the collision.

Text Solution

Verified by Experts

The correct Answer is:
`[T_(min) = 20.4 eV]`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs with One or More Options Correct|30 Videos

  • CAPACITANCE

    PHYSICS GALAXY - ASHISH ARORA|Exercise UNSOLVED NUMERICAL PROBLEMS|40 Videos

Similar Questions

Explore conceptually related problems

The minimum kinetic energy of a ground state hydrogen atom required to have head-on collision with another ground state hydrogen atom but at rest to produce a photon is given by

An electron of kinetic enregy K collides elastically with a stationary hydrogen atom is the ground state. Then,

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

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

A hydrogen atom (mass = 1.66 xx 10^(-27) kg "ionzation potential" = 13.6eV) , moving width a velocity 6.24 xx 10^(4) m s^(-1) makes a completely inelastic head-on collision with another stationary hydrogen atom. Both atoms are in the ground state before collision . Up to what state either one atom may be excited?

A stationary hydrogen atom emits a photon corresponding to first line of the Lyman series. What velocity does the atom acquire?

State the value of minimum excitation energy for Hydrogen atom.

PHYSICS GALAXY - ASHISH ARORA-ATOMIC PHYSICS-Unsolved Numerical Problems
  1. A particular hydrogen like atom with radiation of frequency 2.467 xx 1...

    Text Solution

    |

  2. Monochromatic radiation of wavelength lambda is incident on a hydrogen...

    Text Solution

    |

  3. A single electron orbits a stationary nucleus of charge + Ze, where Z ...

    Text Solution

    |

  4. At what minimum kinetic energy must a hydrogen atom move for it's inel...

    Text Solution

    |

  5. Consider a hydrogen-like atom whose energy in nth excited state is giv...

    Text Solution

    |

  6. A hydrogen atom moving at speed v collides with another hydrogen atom ...

    Text Solution

    |

  7. A double ionised lithium atom is hydrogen like with atomic number 3 ...

    Text Solution

    |

  8. Electron are emitted from an electron gun at almost zero velocity and ...

    Text Solution

    |

  9. A hydrogen like gas emits radiation of wavelengths 460 Å, 828 Å and 10...

    Text Solution

    |

  10. A gas of hydrogen like ions is prepared in a particular excited state ...

    Text Solution

    |

  11. Find the temperature at which the everage thermal kinetic energy is eq...

    Text Solution

    |

  12. A spectroscopic instrument can resolve two nearly wavelength lambda an...

    Text Solution

    |

  13. A hydrogen atom in the normal state is located at a distance r = 2.5 c...

    Text Solution

    |

  14. Using Bohr's theory show that when n is very large the frequency of ra...

    Text Solution

    |

  15. In a hydrogen like ionized atom a single electron is orbiting around ...

    Text Solution

    |

  16. The energy of an electron in an excited hydrogen atom is - 3.4 e V. Ca...

    Text Solution

    |

  17. A gas of identical hydrogen-like atoms has some atoms in the lowest in...

    Text Solution

    |

  18. Two hydrogen-like atoms A and B are of different masses and each atom ...

    Text Solution

    |

  19. A hydrogen like atom (atomic number Z) is in a higher excited state o...

    Text Solution

    |

  20. A gas of hydrogen - like ion is perpendicular in such a way that ions ...

    Text Solution

    |