Single Choice

If $$\mu _{r}$$ be the relative permeability and $$\varepsilon _{r}$$ be the relative dielectric constant of a medium, its refractive index is:

A$$\dfrac{1}{\sqrt{\mu _{r}\epsilon _{r}}}$$
B$$\dfrac{1}{\mu _{r}\epsilon _{r}}$$
C$$\sqrt{{\mu _{r}\epsilon _{r}}}$$
Correct Answer
D$${{\mu _{r}\epsilon _{r}}}$$

Solution

Refractive index is equal to the root of the product of the relative permeability and relative dielectric constant.
Hence, Refractive index $$=\sqrt{\mu_{r} \epsilon _{r}}$$.

SIMILAR QUESTIONS

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