Home
Class 12
PHYSICS
The characteristic X-ray radiation is em...

The characteristic X-ray radiation is emitted when

A

the electrons are accelerated to a fixed energy

B

the source of electrons emits a monoenergetic beam

C

the bombarding electrons knock out electrons from the inner shell of the target atoms and one of outer electrons falls into this vacancy

D

the valence electrons in the target atoms are removed as a result of collision

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    NIKITA PUBLICATION|Exercise Multiple Choice Question|421 Videos

Similar Questions

Explore conceptually related problems

The characteristic X-rays spectrum is emitted due to transition of

The characterstics X-ray spectrum is emitted due to transition of

The wavelength of the characteristic X-ray K_(alpha) line emitted from Zine (Z = 30) is 1.415 Å . Find the wavelength of the K_(alpha) line emitted from molybdenum Z = 42) .

The wavelength of the characteristic X - ray k_(alpha ) line emited by a bydroges like element is 0.32 lambda . The wavelength of the K_(beta) line emited by the same element will be …..

The ionisation energies of K-shell for cobalt, copper, and molebdenum are 7.8, 9.0 and 20.1 KeV respectively. If any metal out of these is used as target in an X-ray tube operated at 15KV , then (a) the K-series of characteristic X-rays will be emitted only by cobalt (b) the K-series of characteristic X-rays will be emitted only by cobalt & Cu (c) the K-series of characteristic X-rays will be emitted only by cobalt, Cu , Co and Mo (d) the minimum wavelength of continuous X-rays emitted by the three metals will be same

Determine the energy of the characteristic X-ray (K_beta) emitted from a tungsten (Z = 74) target when an electron drops from the M-shell (n=3) to a vacancy in the K-shell (n=1)

A The wavelength of the K_alpha line ofthe characteristic X rays emitted by an element is 0.64 Å . What is the wavelength of K_beta line emitted by the same element?

A: The nature of the characteristic X -rays does not depend on accelerating potential. R: X- rays are electromagnetic radiation.

NIKITA PUBLICATION-ATOMS, MOLECULES AND NUCLEI-MCQs
  1. In Davission and Germer experiment, the function of nickel crystal is

    Text Solution

    |

  2. X-ray are

    Text Solution

    |

  3. The characteristic X-ray radiation is emitted when

    Text Solution

    |

  4. When high speed electrons hit a target

    Text Solution

    |

  5. The continuous X-ray spectrum produced by an X-ray machine at constant...

    Text Solution

    |

  6. The characteristic of the electrons striking the target in an X-ray tu...

    Text Solution

    |

  7. The characteristic of the electrons striking the target in a Coolidge ...

    Text Solution

    |

  8. The target element in an X-ray tube must have a high

    Text Solution

    |

  9. The characteristic of the target element that determines the frequency...

    Text Solution

    |

  10. During X-ray formation, if voltage is increased

    Text Solution

    |

  11. X-rays are produced

    Text Solution

    |

  12. What happens when fast moving electrons are stopped and fall on the me...

    Text Solution

    |

  13. Which of the following types of electromagnetic waves have the longest...

    Text Solution

    |

  14. Intensity of X-rays depends upon the number of

    Text Solution

    |

  15. To produce hard X-rays in Coolidge tube, we should increase

    Text Solution

    |

  16. In an X-ray tube, the intensity of the emitted X-ray beam is increased...

    Text Solution

    |

  17. The wavelength of the characteristic X - ray k(alpha ) line emitted by...

    Text Solution

    |

  18. An X-ray tube operated at 30 kV emits a continuous X-ray of short wave...

    Text Solution

    |

  19. The wavelength of K(alpha) X-rays produced by an X-ray tube is 1.785 Å...

    Text Solution

    |

  20. Which of the following is accompanied by the characteristic X - ray em...

    Text Solution

    |