The speed of electromagnetic radiation in vac | vedclass

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Question

Maxwell deduced that the speed of propagation of an electromagnetic wave through a vacuum is entirely determined by the constants $\mu_0$ and $\epsilo

Vedclass · Accepted Answer

$\frac{1}{{\sqrt {{\mu _0}{ \in _0}} }}$

Vedclass · Answer

Maxwell deduced that the speed of propagation of an electromagnetic wave through a vacuum is entirely determined by the constants $\mu_0$ and $\epsilon_0$ as the following:

$c=\frac{1}{\sqrt{\mu_0 \varepsilon_0}}$

We know that $\mu_0=4 \pi 	imes 10^{-7}\,Ns ^2 C ^{-2}$ and $\epsilon_0=8.854 	imes 10^{-12}\, C ^2\, N ^{-1} \,m ^{-2}$ which gives:

$c =\frac{1}{\sqrt{4 \pi 	imes 10^{-7} 8.854 	imes 10^{-1.12}}}=2.998 	imes 10^8\,m / s$

The speed of electromagnetic radiation in vacuum is

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