Electromagnetic waves travel in a medium with | vedclass

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Question

$\frac{\varepsilon_{\mathrm{II}} 	imes \mu_{\mathrm{mL}}}{\varepsilon_0 	imes \mu_0}=\frac{\frac{1}{\mathrm{v}^2}}{\frac{1}{\mathrm{c}^2}}$

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Vedclass · Accepted Answer

$2$

Vedclass · Answer

$\frac{\varepsilon_{\mathrm{II}} 	imes \mu_{\mathrm{mL}}}{\varepsilon_0 	imes \mu_0}=\frac{\frac{1}{\mathrm{v}^2}}{\frac{1}{\mathrm{c}^2}}$

$\varepsilon_{\mathrm{r}} 	imes \mu_{\mathrm{r}}=\frac{\mathrm{c}^2}{\mathrm{v}^2}$

$\varepsilon_{\mathrm{r}} 	imes 2=\frac{\left(3 	imes 10^8ight)^2}{\left(1.5 	imes 10^8ight)^2}$

$\varepsilon_{\mathrm{r}} 	imes 2=4$

$\varepsilon_{\mathrm{r}}=2$

Electromagnetic waves travel in a medium with speed of $1.5 \times 10^8 \mathrm{~ms}^{-1}$. The relative permeability of the medium is $2.0$ . The relative permittivity will be :