\(\therefore\) For p-electron, \(l=1\)
\(\therefore\) Orbital angular momentum,
\(=\sqrt{1(1+1)} \times \frac{h}{2 \pi}\)
\(=\sqrt{2} \times \frac{h}{2 \pi}\)
\(=\frac{h}{\sqrt{2} \pi}\)
$(h=6.63 \times 10^{-34} \ J \ s, c=3 \times 10^8 \ m \ s^{-1})$