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  • If be the peremeability and <img alt="\varepsilon 0" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cvareps

If \mu_0 be the peremeability and \varepsilon 0 be the permittivity of a medium, then its refractive index is given by

Option: 1

\frac{1}{\sqrt{\mu 0 \varepsilon 0}}


Option: 2

\frac{1}{\mu_0 \varepsilon_0}


Option: 3

\sqrt{\mu_{0 \varepsilon 0}}


Option: 4

\mu_0 \varepsilon_0


Answers (1)

best_answer

Refractive index of medium is \mathrm{=\frac{c}{v}}

Where \mathrm{c=\frac{1}{\sqrt{\mu 0 \varepsilon_0}} \text { and } v=\frac{1}{\sqrt{\mu_0 \varepsilon_0 \mu_r \varepsilon_r}}}

\mathrm{\therefore \quad \mu=\frac{1 / \sqrt{0_{00}}}{1 / \sqrt{\mu_0 \varepsilon_0 \mu_r \varepsilon}}=\sqrt{\mu_r \varepsilon_r}}

Given \mathrm{\mu_r=\mu_0} and \mathrm{\varepsilon _r=\varepsilon _0} then \mu=\sqrt{\mu_{0 \varepsilon 0}}

Posted by

HARSH KANKARIA

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