Q.
The variation of wavelength $\lambda$ of the $K_{\alpha}$ line with atomic number $Z$ of the target is shown by the following curve of
A) $A$
B) $B$
C) $C$
D) None of these
Explanation
(c) For $K_{\alpha}$ line $v \propto (Z - 1)^{2} \Rightarrow \lambda \propto \frac{1}{(Z - 1)^{2}}$
$i.e.$ the graph between $\lambda$ and $z$ will be $(c)$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.