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The wavelength of Kalpha X-ray of tungst...

The wavelength of `K_alpha` X-ray of tungsten is `21*3` pm. It takes `11*3` keV to knock out an electron from the L shell of a tungsten atom. What should be the minimum accelerating voltage across an X-ray tube having tungsten target which allows production of `K_alpha` X-ray?

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Here lambda =21.3xx10^-12p m `
` Now , E_X-E_L=1242/(21.3xx10^-3) `
` =58.309KeV `
` E_L=11.3Kev, `
` Now V_e=69.609KeV `
` or v=69.6009KV `
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HC VERMA-X-Rays-Exercise
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  2. The electron beam in a colour TV is accelerated through 32 kV and then...

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  3. When 40 kV is applied across an X-ray tube, X-ray is obtained with a m...

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  4. An X-ray tube operates at 40 kV. Suppose the electron converts 70% of ...

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  5. The wavelength of Kalpha X-ray of tungsten is 21*3 pm. It takes 11*3 k...

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  6. The Kbeta X-ray of argon has a wavelength of 0.36 nm. The minimum ener...

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  7. The kalpha X-rays of aluminium (Z = 13 ) and zinc ( Z = 30) have wavel...

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  8. A certain element emits Kalpha X-ray of energy 3.69 keV. Use the data ...

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  9. The kbeta X-rays from certain elements are given below. Draw a Moseley...

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  10. Use Moseley's law with b = 1 to find the frequency of the Kalpha X-ray...

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  11. The Kalpha and Kbeta X-rays of molybdenum have wavelengths 0*71 A and ...

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  12. The wavelength of Kalpha and Lalpha X-rays of a material are 21.3 pm a...

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  13. The energy of a silver atom with a vacancy in K shell is 25.31 keV, in...

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  14. Find the maximum potential difference which may be applied across an X...

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  15. The electric current in an X-ray tube (from the target to the filament...

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  16. Heat at the rate of 200 W is produced in an X-ray tube operating at 20...

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  17. Continuous X-rays are made to strike a tissue paper soaked with pollut...

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  18. A free atom of iron emits Kalpha X-rays of energy 6.4 keV. Calculate t...

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  19. The stopping potential in a photoelectric experiment is linearly relat...

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  20. Suppose a monochromatic X-ray beam of wavelength 100 pm is sent throug...

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