A) \[f\propto \sqrt{Z}\]
B) \[f\propto {{Z}^{2}}\]
C) \[f\propto Z\]
D) \[f\propto {{Z}^{3/2}}\]
Correct Answer: B
Solution :
Moseleys law is an empirical law concerning the characteristic electromagnetic spectrum that is absorbed or emitted by atoms. Using X-ray diffraction techniques Moseley found that most intense short wavelength line in the X-ray spectrum of a particular element is related to the elements atomic number Z as follows \[F=ma=m\frac{\Delta v}{\Delta t}\] \[\Rightarrow \] \[F\Delta T=m\Delta v=\Delta p\]
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