Question

The graph that correctly represents the relation of frequency $v$ of a particular characteristic X-ray with the atomic number $Z$ of the material isThe graph that correctly represents the relation of frequency $v$ of a particular characteristic X-ray with the atomic number $Z$ of the material is

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

By Moseley's law,
$\sqrt{v}=a(Z-b)$ or $v=a^2(Z-b{)}^2$
Comparing with the equation of a parabola,
$y^2=4$ ax, it conforms to graph $c$.