Physics - Unit & Dimension Question with Solution | TestHub

(a) and (b) are the standard results.Then
$\left[{\epsilon }_0{\mu }_0\right]$
$=\left[L^{-2}{T}^2\right]$
, so (d) is wrong and
$\frac{1}{\sqrt{{\epsilon }_0{\mu }_0}}$
has dimensions $\left[L{T}^{-1}\right]$ - the speed of light.