Question

The velocity of electromagnetic radiation in a medium of permittivity ${ϵ}_0$ and permeability ${\mu }_0$ is given by :

• A. $\frac{1}{\sqrt{{\mu }_0{\epsilon }_0}}$
• B. $\frac{{\mu }_0}{{\epsilon }_0}$
• C. $\sqrt{\frac{{\epsilon }_0}{{\mu }_0}}$
• D. $\sqrt{{\mu }_0{\epsilon }_0}$

Answer 1

The correct option is A $\frac{1}{\sqrt{{\mu }_0{\epsilon }_0}}$

$C=\frac{1}{\sqrt{{\mu }_0{\epsilon }_0}}=$velocity of em wave through
medium having permittivity $\left({\epsilon }_0\right)$ and
permeability $\left({\mu }_0\right)$