Question

Spin angular momentum for electron is given by :

• A. $\sqrt{S(S+1)}\frac{h}{2\pi }$
• B. $\sqrt{2S(S+1)}\frac{h}{2\pi }$
• C. $\sqrt{S(S+2)}\frac{h}{2\pi }$
• D. none

Answer 1

The correct option is A $\sqrt{S(S+1)}\frac{h}{2\pi }$

Spin angular momentum for electron is given by the expression $\sqrt{S(S+1)}\frac{h}{2\pi }$. It is also given by the expressions ${\mu }_{effective}=\sqrt{4s(s+1)}$
${\mu }_{effective}=\sqrt{n(n+2)}B.M$