Question

Find the minimum wavelength of the emitted X rays, when an X ray tube is operated at 50 kV.

Answer 1

${\lambda }_{min}=\frac{hc}{eV}$

$=\frac{6\cdot 6\times {10}^{-34}\times 3\times {10}^8}{1\cdot 6\times {10}^{-19}\times 50\times {10}^3}$

$=2\cdot 475\times {10}^{-11}m$