Question

The magnetic moment $\left(\mu \right)$ of a revolvng electron around the nucleus varies with principle quantum number n as

• A. $\mu \propto n$
• B. $\mu \propto 1/n$
• C. $\mu \propto n^2$
• D. $\mu \propto 1/n^2$

Answer 1

The correct option is A $\mu \propto n$

Magnetic moment $\mu$ of a revolving electron around the nucleus $=n{\mu }_B$
Where ${\mu }_B=\frac{eh}{4\pi m}$=Bohr Magneton.
So, $\mu \propto n$