Question

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

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

Answer 1

Answer: (A)

The velocity of electromagnetic radiation in vacuum is $\frac{1}{\sqrt{{μ}_0{Î\mu }_0}}$, where ${μ}_0$ and ${Î\mu }_0$ are the permeability and permittivity of vacuum.