Question

The unit of expression ${\mu }_0{\epsilon }_0$ is

• A. $m\text{/}s$
• B. $m^2/s^2$
• C. $s^2\text{/}{m}^2$
• D. $s\text{/}m$

Answer 1

Answer: (C)

Velocity of light, $c=\frac{1}{\sqrt{{\mu }_0{\epsilon }_0}}$ or ${\mu }_0{\epsilon }_0=\frac{1}{c^2}$ $=\frac{1}{{(m\text{/}s)}^2}$ $=s^2\text{/}{m}^2$