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Physics
Electromagnetic Waves
Dimensions of $\frac{1}{\mu_0ε_0}$ where symbols have their usual meanings, are
[L−1T]
[L−2T2]
[L2T−2]
[LT−1]
$ c = \frac{1}{\sqrt{\mu_0ε_0}}\, or\, \frac{1}{\mu_0ε_0}= c^2$
$ = [M^0LT^{-1}]^2=[M^0L^2T^{-2}]$