Home
Class 12
PHYSICS
An electron collides with a fixed hydrog...

An electron collides with a fixed hydrogen atom in its ground state. Hydrogen atom gets excited and the colliding electron loses all its kinetic energy. Consequently the hydrogen atom may emits a photon corresponding to the largest wavelength of the Balmer series. The K.E. of colliding electron will be..

Text Solution

Verified by Experts

The correct Answer is:
2
Kinetic energy of electron `= 13.6 [1-1/9] eV = 12.1 eV`.
Promotional Banner

Topper's Solved these Questions

  • SIMPLE HARMONIC MOTION

    ALLEN |Exercise Exercise-01|117 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN |Exercise Exercise-02|19 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN |Exercise Example|1 Videos

  • RACE

    ALLEN |Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|25 Videos

  • TEST PAPER

    ALLEN |Exercise PHYSICS|4 Videos

Similar Questions

Explore conceptually related problems

To excite the hydrogen atom from its ground state to second excited state…. eV energy is required.

As an electron makes a transition from an excited state to the ground state of a hydrogen - like atom /ion

The potential energy of the orbital electron in the ground state of hydrogen atom is -E What is its kinetic energy ?-

As an electron makes a transition from an excited state to the ground state of a hydrogen like atom/ion.

What does the negative electronic energy for hydrogen atom mean?

The ground state energy of hydrogen atom is - 13.6 eV. When electron is in excited state its excitation energy is ......

The energy of hydrogen atom in its ground state is -13.6 eV . The energy of the level corresponding to the quantum number n = 5 is

What is the ground state of an atom ? And what is the ionization energy and excitation energy of a hydrogen atom ?

In electron ….. From infinite state to ground state in H atom . Find the emitted wavelength .

ALLEN -SIMPLE HARMONIC MOTION-SOME WORKED OUT EXAMPLES
  1. The probability that a certain radioactive atom would get disintegrate...

    Text Solution

    |

  2. Figure shows the graph of stopping potential verus that frequency of a...

    Text Solution

    |

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

    Text Solution

    |

  4. The positions of .(1)^(2)D,.(2)^(4)He and .(3)^(7)Li are shown on the ...

    Text Solution

    |

  5. How many head-on elastic collisions must a neutron have with deuterium...

    Text Solution

    |

  6. The fig. shows the variation of photon current with anode potential fo...

    Text Solution

    |

  7. Radioactive nuclei emit beta^- particles. Electrons exist inside the...

    Text Solution

    |

  8. A vessel of 831 cc contains .(1)^(3)H atm and 27^(@)C. If half life of...

    Text Solution

    |

  9. Choose the CORRECT statement(s)

    Text Solution

    |

  10. Einstein in 1905 proppunded the special theory of relativity and in 19...

    Text Solution

    |

  11. Einstein in 1905 proppunded the special theory of relativity and in 19...

    Text Solution

    |

  12. Einstein in 1905 proppunded the special theory of relativity and in 19...

    Text Solution

    |

  13. A meacury arec lamp provides 0.1 watt of ultra-violet radiation at a w...

    Text Solution

    |

  14. A point source is emitting 0.2 W of ultravio- let radiation at a wavel...

    Text Solution

    |

  15. A meacury arec lamp provides 0.1 watt of ultra-violet radiation at a w...

    Text Solution

    |

  16. With respect to photoelectric experiment, match the entries of Column ...

    Text Solution

    |

  17. A sample of hydrogen gas is excited by means of a monochromatic radiat...

    Text Solution

    |

  18. An electron collides with a fixed hydrogen atom in its ground state. H...

    Text Solution

    |

  19. Neutron in thermal ewuilibrium with matter at 27^(@)C can be throught ...

    Text Solution

    |

  20. Electromagnetic waves of wavelenglth 1242 Å are indicdent on a metal o...

    Text Solution

    |