Question

The frequencies $\left(f\right)$ of $K_{\alpha }$ lines of different material $\left(z\right)$ are plotted on a graph as shown in figure.
Choose the correct variation which satisfies the Moseley's law

• A. $2$
• B. $3$
• C. $4$
• D. $1$

Answer 1

The correct option is A $2$

According to Moseley's Law
$\sqrt{v}=a(z-b)$
or
$v=a^2(z-b{)}^2$
where $a$ and $b$ are constant depending upon the particular spectral line.