Electromagnetic Waves in a Medium

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1. 1 2022 Electromagnetic Waves #
   When light propagates through a material medium of relative permittivity $\epsilon_r$ and relative permeability $\mu_r$, the velocity of light, $v$ is given by : ($c$ - velocity of light in vacuum)
   A $v=\frac{c}{\sqrt{\epsilon_r\mu_r}}$

   B $v=c$

   C $v=\sqrt{\frac{\mu_r}{\epsilon_r}}$

   D $v=\sqrt{\frac{\epsilon_r}{\mu_r}}$
   Check Answer

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