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The velocity of electromagnetic radiation in a medium of permittivity \(\varepsilon_0\) and permeability \(\mu_0\) is given by
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The correct answer is:
\(\frac{1}{\sqrt{\mu_0 \varepsilon_0}}\)
Velocity of electromagnetic wave is
$c=\frac{1}{\sqrt{\mu_0 \varepsilon_0}}$
$c=\frac{1}{\sqrt{\mu_0 \varepsilon_0}}$
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