Home
Class 12
PHYSICS
Why the photoectronic emission can not b...

Why the photoectronic emission can not be performed by using X-rays and gamma rays?

Text Solution

Verified by Experts

When a photon of sufficient energy falls on a metal surface, the photon vanishes by imparting all its energy to an electron and the electron comes out of the metal surface. This phenomenon is known as photoelectric effect. But in case of X-rays or gamma rays, the photon energy is too high for the electron of the metal to absorb so that the photon is not annihilated by imparting its whole energy to an electron. Hence the photoelectric emission does not take place with X-ray or gamma ray photons
Promotional Banner

Topper's Solved these Questions

  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise NCERT Textbook Questions with Answer Hint|19 Videos
  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise NCERT Exemplar Questions with Answer HINT|8 Videos
  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise Section Related Question|18 Videos
  • OPTICAL INSTRUMENTS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|8 Videos
  • QUESTION PAPER OF NEET 2017

    CHHAYA PUBLICATION|Exercise QUESTION PAPERS OF (NEET) (2017)|39 Videos

Similar Questions

Explore conceptually related problems

X-rays are:

Compare X-rays and gamma -rays .

What are the differences between X-rays and gamma -rays?

What are the basic differences between X-rays and gamma - rays ?

Treatment of cancer by X-rays or Gamma rays is

Treatment of cancer by X-rays or Gamma rays is

Can X-ray ionise gases?

Give the properties of alpha-beta and gamma -rays.

What is the nature of soft X-rays and hard X-rays ?

CHHAYA PUBLICATION-QUANTUM THEORY-Higher Order Thinking Skill (HOTS) Questions
  1. When light incident on a metal has energy less than the work function ...

    Text Solution

    |

  2. Kinetic energy of proton is the same as that of an alpha-particle. Wha...

    Text Solution

    |

  3. What should be the percentage increase or decrease of kinetic energy o...

    Text Solution

    |

  4. Kinetic energy of a free electron is doubled. By how many times, would...

    Text Solution

    |

  5. Energy of a photon = E , kinetic energy of a proton is also the same a...

    Text Solution

    |

  6. Is matter wave an electromagnetic wave?

    Text Solution

    |

  7. Distinguish between matter wave and light wave.

    Text Solution

    |

  8. Maximum kinetic energies of photoelectrons emitted from a metal surfac...

    Text Solution

    |

  9. A proton and an electron have the same kinetic energy. Which one has l...

    Text Solution

    |

  10. A proton and an electron have same de Broglie wavelength. Which one ha...

    Text Solution

    |

  11. A beam of photon of energy 5.0 eV falls on a free metal surface of wor...

    Text Solution

    |

  12. A photon and an electron have same de Broglie wavelength. Which one ha...

    Text Solution

    |

  13. Does the photoelectric emission take place due to incidence of visible...

    Text Solution

    |

  14. Why the photoectronic emission can not be performed by using X-rays an...

    Text Solution

    |

  15. What is the relation of de Broglie wavelength of a moving particle wi...

    Text Solution

    |

  16. Find the expression of de Broglie wavelength of a particle moving with...

    Text Solution

    |

  17. If the speed of an electron is v and the speed of another particle is ...

    Text Solution

    |

  18. Prove that the product of the slope of V(0)-f graph and electronic cha...

    Text Solution

    |

  19. The given graphs show the variation of photoelectric current (I) with ...

    Text Solution

    |

  20. The potential energy U of a moving particle of mass m varies with x as...

    Text Solution

    |