Question

In Moseley's equation $\sqrt{v}=a(Z-b)$:

• A. b depends on metal and a is independent of metal
• B. both a and b are metal dependent
• C. both a and b are independent of metal
• D. a is metal dependent while b is not

Answer 1

The correct option is C both a and b are independent of metal

By Moseley's equation,

$\sqrt{v}=a(Z-b)$

where, $v$ refers to the frequency, $Z$ is the nuclear charge and, $a$ & $b$ are constants that depend upon the type of the spectral line, not on the nature of the material.

Hence, option $C$ is correct.