Answer to Question #172146 in Classical Mechanics for Bejide

Question #172146

What voltage mist be applied to an xray tube for it to emit xrays with a minimum wavelength of 30picometres


1
Expert's answer
2021-03-17T16:55:40-0400
qV=hcλ,qV=\dfrac{hc}{\lambda},V=hcqλ,V=\dfrac{hc}{q\lambda},V=6.621034 Js3108 ms1.61019 C301012 m=4.14104 V.V=\dfrac{6.62\cdot10^{-34}\ J\cdot s\cdot3\cdot10^8\ \dfrac{m}{s}}{1.6\cdot10^{-19}\ C\cdot30\cdot10^{-12}\ m}=4.14\cdot10^4\ V.

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