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The binding energy of the innermost elec...

The binding energy of the innermost electron in tungsten is `40 keV`. To produce characteristic `X` - rays using a tungsten target in an `X` - rays tube the potential difference `V` between the cathode and the anti - cathode should be

A

4 kV

B

40 kV

C

400 kV

D

4000 kV

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Knowledge Check

  • If the potential difference between the anode and cathode of the X-ray tube is increases

    A
    The peaks at R and S would move to shorter wavelength
    B
    The peaks at R and S would remain at the same wavelength
    C
    The cut off wavelength at P would decrease
    D
    (b) and (c) both are correct

  • If the potential difference between the anode and cathode of the X - ray tube is increases

    A
    The peaks at `R` and `S` would move to shorter wavelength
    B
    The peaks at `R` and `S` would remain at the same wavelength
    C
    The cut off wavelength at `P` would decrease
    D
    `(b)` and `( c)` both are correct

  • When the minimum wavelength of X-rays is 2Å then the applied potential difference between cathode and anticathode will be

    A
    6.2 kV
    B
    2.48kV
    C
    24.8kV
    D
    62kV

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