q how much should be the voltage of an x-ray tube
Q. How much should be the voltage of an X-ray tube so that the electrons emitted from the cathode may give an X-ray of wavelength 1 Ao after striking the target?
λmin = 12400 A0 / V
Therefore V = 12400 A0 / λmin
= 12400 A0 / 1 Ao = 12400 volt
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