Kelvi

When light propagates through a material medium of relative permittivity $\varepsilon_r$ and relative permeability $\mu_r,$ the velocity of light, $v$ is given by (where $c$ is the velocity of light in vacuum):

medium

Electromagnetic Waves

2022

physics

v = c

$v = \frac{c}{\sqrt{\mu_r \varepsilon_r}}$

Explanation

To solve this problem, we need to determine the velocity of light $v$ in a material medium with given relative permittivity $\varepsilon_r$ and relative permeability $\mu_r. \\$ The velocity of light in a medium is given by the formula:

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When light propagates through a material medium of relative permittivity εr \varepsilon_r εr​ and relative permeability μr, \mu_r, μr​, the velocity of light, v v v is given by (where c c c is the velocity of light in vacuum):

Explanation

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When light propagates through a material medium of relative permittivity $\varepsilon_r$ and relative permeability $\mu_r,$ the velocity of light, $v$ is given by (where $c$ is the velocity of light in vacuum):