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The K(alpha) X-ray emission line of lung...

The `K_(alpha)` X-ray emission line of lungsten accurs at `lambda = 0.021 nm`. What is the energy difference between `K`and `L` levels in the atom?

A

`0.51 MeV`

B

`1.2 MeV`

C

`59 keV`

D

`13.6 eV`

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaE=1242/(lambda(nm))eV=1242/0.021=59142 eV~= 59KeV`
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CP SINGH-X-Rays-EXERCISES
  1. The potential difference applied to an X-ray tube is 5k V and the curr...

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

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  3. Characteristic X-rays are produced due to

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  4. If the potential difference applied across a Coolidge tube is increase...

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  5. Electrons with energy 80 keV are incident on the tungsten target of an...

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  6. The intensity of X-rays form a Coolidge tube is plotted against wavel...

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  7. The binding energy of the innermost electron in tungsten is 40 keV. To...

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  8. Electrons with de- Broglie wavelength lambda fall on the target in an ...

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  9. For the structural analysis of crystals, X-rays are used because

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  10. The K(alpha) X-ray emission line of lungsten accurs at lambda = 0.021 ...

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  11. Which one of the following statement is WRONG in the context of X- ray...

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

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  13. Let lambda(alpha'), lambda(beta),and lambda'(alpha) denote the wavele...

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  14. Figure shows the intensity-wavelength relations of X-rays coming from ...

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  15. Frequencies of Kalpha X-rays of different materials are measured. Whic...

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  16. Moseley's law for characteristic X-rays is sqrt v = a(Z-b). In this,

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  17. The largest distance between the interatomic planes of crystal is 10^(...

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  18. Consider a photon of continuous X-ray and a photon of characteristic X...

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  19. For harder X-rays, (i) the wavelength is higher (ii) the intensity...

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  20. Which of the following pairs constitute very similar rediations? (i)...

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