Question

The orbital angular momentum of an electron in $3s-$ orbital is:

• A. $\frac{1}{2}\cdot \frac{h}{2\pi }$
• B. $\frac{h}{2\pi }$
• C. $\frac{1}{3}\cdot \frac{h}{2\pi }$
• D. zero

Answer 1

Answer: (D)

$\sqrt{\ell \left(\ell +1\right)}\frac{h}{2\pi }$ for $s\left(\ell =0\right)\Rightarrow O.A.M.=\frac{h}{2\pi }\left(0\right)=0$