Question

Velocity of light is equal to

• A. $\sqrt{\frac{\varepsilon_{0}}{\mu_{0}}}$
• B. $\sqrt{\frac{1}{\varepsilon_{0}\mu_{0}}}$
• C. $\frac{\varepsilon_{0}}{\mu_{0}}$
• D. $\varepsilon_{0}\mu_{0}$

Answer 1

Answer: (B)

The relation between speed of light $\left(c\right),$ permittivity of free space$\left(\varepsilon_{0}\right)$ and permeability of free space$\left(\mu_{0}\right)$ is by definition $c=\frac{1}{\sqrt{\mu_{0}\varepsilon_{0}}}$