Home
Class 12
PHYSICS
A cobalt (atomic no. =27 ) target is bo...

A cobalt (atomic no. =27 ) target is bombereded with electrons and the wavelength of its characteristic `x`-rays spectrum are measured. A second weak characteristic spectrum is also found due to an impurity in the target. The wavelength of the `K_(alpha)` lines `225.0pm` (cobalt ) and `100.0pm` (impurity). Atomic number of the impurity is `(take b=1)`

A

39

B

40

C

59

D

60

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • X-RAYS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQ with one or More Options Correct|17 Videos

  • X-RAYS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerica Problem for Preparation|23 Videos

  • X-RAYS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Conceptual MCQ s|27 Videos

  • WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSE, INPhO & IPhO|135 Videos

Similar Questions

Explore conceptually related problems

A cobalt target (Z = 27) is bomberded with electron and the wavelength of its characteristic spectrum are measured . A second , fainter characcteristic spectrum is also found because of an impurity in the target. The wevelength of the K_(alpha) lines are 178.9 pm (cobalt) and 143.5 pm (impurity). What is the impurity?

From what meterial is the anod of an X-ray tube made if the K_alpha line wavelength of thej characteristic spectrum is 0.76 Å ?

If Z is the atomic number of the target atom, then the frequency of the K_alpha line of the characteristic X ray spectrum is directly proportional to

The graph between the square root of the frequency of a specific line of characteristic spectrum of X - rays and the atomic number of the target will be

If there times of lambda_(min) of continuous X- ray spectrum of target metal at 40 kV is some as the wavelength of K_(alpha) line of this metal at 30 kV , then determine the atomic number of the target metal.

In X-ray spectrum wavelength lamda of line K_(alpha) depends on atomic number Z as

When 50 keV electrons are made incident on a target material, the wavelength of K_(alpha) X–ray line was found to be 0.5Å. When the accelerating potential is increased to 100 kV, then the wavelength of K_(alpha) –line from the same target will be

STATEMENT-1: In an X-ray tube, the wavelengths of the characteristic X-rays depends on the metal used as target. STATEMENT-2: Metals atomic numbers are best suited for the production of X-rays

PHYSICS GALAXY - ASHISH ARORA-X-RAYS-Numerical MCQs Single Options Correct
  1. In a discharge tube when 200 volt potential difference is applied 6.25...

    Text Solution

    |

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

    Text Solution

    |

  3. An element of atomic number 9 emits K(alpha) X-ray of wavelength lamda...

    Text Solution

    |

  4. The minimum wavelength of X-rays produced in an X-ray tube is lambda w...

    Text Solution

    |

  5. The wavelength of k(alpha) X- rays produced by an X - rays tube is 0....

    Text Solution

    |

  6. The voltage applied to an X-ray tube is 18 kV. The maximum mass of pho...

    Text Solution

    |

  7. The battery connected across a coolidge tube operates at a power level...

    Text Solution

    |

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

    Text Solution

    |

  9. An X-raytube produces a continuous spectrum of radiation with its shor...

    Text Solution

    |

  10. The element which has a K(alpha) X-rays line of wavelength 1.8 Å is ...

    Text Solution

    |

  11. In a coolidge tube, the tungsten (Z=74) target is bombarded by electro...

    Text Solution

    |

  12. The potential different across the Coolidge tube is 20 kV and 10 m A c...

    Text Solution

    |

  13. When the accelerating voltage applied on the electrons, in an X-rays t...

    Text Solution

    |

  14. The wavelength of K(alpha) X-rays of two metals A and B are 4 // 1875 ...

    Text Solution

    |

  15. A cobalt (atomic no. =27 ) target is bombereded with electrons and th...

    Text Solution

    |

  16. An X-rays tube is operated at 66kV. Then , in the continous spectrum o...

    Text Solution

    |

  17. An X-ray tube is operating at 150 kV and 10 mA. If only 1% of the ele...

    Text Solution

    |

  18. The potential difference applying to an X- ray tube is 5kV and the cu...

    Text Solution

    |

  19. A metal block is exposed to beams of X-rays of different wavelength. X...

    Text Solution

    |

  20. The energy ratio of two k(alpha) photons obtined in x -ray from two me...

    Text Solution

    |