The unit of expression $\mu_0ε_0$ are

ms−1 m2s−2 s2m−2 sm−1

s2m−2

Velocity of light, $ c =\frac{1}{\sqrt{\mu_0ε_0}}$ or $ \mu_0ε_0 =\frac{1}{c^2} = \frac{1}{(ms^{-1})^2}=s^2m^{-2}$