Question

The relative magnetic permeability of the medium Is 2 and the relative
electrical permittivity of the medium Is 8. Compute the refractive index of
the medium.​

Answer 1

Given:

The relative magnetic permeability of the medium Is 2.

i.e. $\displaystyle \mu_r = 2$

The relative permittivity of the given medium Is 8.

i.e. $\displaystyle \varepsilon _r = 8$

To find :

The refractive index of the medium.​

i.e. η =?

Explanation:

Refractive index of medium id given by

$\displaystyle\eta = \sqrt{\varepsilon _r \times \mu_r}$

   = $\sqrt[2]{2\times 8}$

η  =$\sqrt{16}$

η  = 4

The refractive index of the medium is 4.