Question

Velocity of light is equal to

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

Answer 1

Answer: (B)

The relation between speed of light $\left(c\right),$ permittivity of free space$\left({\epsilon }_0\right)$ and permeability of free space$\left({\mu }_0\right)$ is by definition $c=\frac{1}{\sqrt{{\mu }_0{\epsilon }_0}}$