Answer to Question #121087 in Physics for seima

Question #121087
what is the wavelength of the x-ray emitted from a tungsten target (Z=74) when an electron moves from the M-shell (n=3) to the K-shell(n=1)
1
Expert's answer
2020-06-09T13:19:04-0400
1λ=R(Z1)2(112132)\frac{1}{\lambda}=R(Z-1)^2\left(\frac{1}{1^2}-\frac{1}{3^2}\right)

1λ=1.097107(741)2(112132)\frac{1}{\lambda}=1.097\cdot10^7(74-1)^2\left(\frac{1}{1^2}-\frac{1}{3^2}\right)

λ=1.91011 m\lambda=1.9\cdot10^{-11}\ m


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