Answer
$\frac{\mu_{\text {orb }}}{\mu_p}=6.6 \times 10^2 \text {. }$
Work Step by Step
$$
\text { From Formula that gives, } \frac{\mu_{\text {orb }}}{\mu_p}=\frac{e h / 4 \pi m_e}{\mu_p}\\=\frac{\mu_B}{\mu_p}\\=\frac{9.27 \times 10^{-24} \mathrm{~J} / \mathrm{T}}{1.4 \times 10^{-26} \mathrm{~J} / \mathrm{T}}\\=6.6 \times 10^2 \text {. }
$$
