Home
Class 12
PHYSICS
A photon collides with a stationary hydr...

A photon collides with a stationary hydrogen atom in ground state inelastically. Energy of the colliding photon is 10.2 eV. After a time interval of the order of micro second another photon collides with same hydrogen atom inelastically with an energy of 15eV. What wil be observed by the detector?
(a) 2 photons of energy 10.2 eV
(b) 2 photons of energy 1.4 eV
(c ) One photon of energy 10.2 eV and an electron of energy 1.4 eV
(d) One photon of energy 10.2 eV and another photon of energy 1.4 eV

Text Solution

Verified by Experts

The correct Answer is:
One electron having kinetic energy nearly 11.6 eV
Promotional Banner

Topper's Solved these Questions

  • MODERN PHYSICS -1

    MOTION|Exercise EXERCISE-3 ( LEVEL -II)|10 Videos

  • MODERN PHYSICS -1

    MOTION|Exercise EXERCISE-4(LEVEL-I)|32 Videos

  • MODERN PHYSICS -1

    MOTION|Exercise EXERCISE-2(LEVEL-II)|15 Videos

  • MODERN PHYSICS - 2

    MOTION|Exercise EXERCISE - 4 (Level -II) PREVIOUS YEAR - JEE ADVANCED|28 Videos

  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 3 Section-B|12 Videos
MOTION-MODERN PHYSICS -1-EXERCISE-3( LEVEL-I)
  1. What voltage must be applied to an electron microscope to produce elec...

    Text Solution

    |

  2. An electron and a photon have the same de Broglie wavelength. Which on...

    Text Solution

    |

  3. An electron microscope uses electrons accelerated by a voltage of 50kV...

    Text Solution

    |

  4. An electron of mass m and charge e initially at rest gets accelerated ...

    Text Solution

    |

  5. Assume that a particle cannot be confined to a sphereical volume of di...

    Text Solution

    |

  6. A hydrogen atom in a state of binding energy 0.85 eV makes a transitio...

    Text Solution

    |

  7. A hydrogen atom is in 5^("in") excited state. When the electron jumps ...

    Text Solution

    |

  8. Find the ratio of series limit wavelength of Balmer series to waveleng...

    Text Solution

    |

  9. Imagine an atom made of a proton and a hypothetical particle of double...

    Text Solution

    |

  10. In a hydrogen atom , the electron moves in an orbit of radius 0.5 A ...

    Text Solution

    |

  11. Explain why nearly all H atoms are in the ground state at room tempera...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. A photon collides with a stationary hydrogen atom in ground state inel...

    Text Solution

    |

  15. An H atom in ground state is moving with initial kinetic energy K .It ...

    Text Solution

    |

  16. Obtain a relation between the frequencies of K(oo) K(beta) and L(alpha...

    Text Solution

    |

  17. Figure shows K(alpha)& K(beta) X-rays along with continuous X-ray. Fin...

    Text Solution

    |

  18. Photoelectrons are emitted when 400 nm radiation is incident on a surf...

    Text Solution

    |

  19. A 20 KeV energy electron is brought to rest in an X-ray tube, by under...

    Text Solution

    |

  20. The wavelength of K(alpha) X-ray of tungsten is 21.3 pm. It takes 11.3...

    Text Solution

    |