Optics Question 731

Question: If $ {\mu _{ _{0}}} $ be the relative permeability and $ K _{0} $ the dielectric constant of a medium, its refractive index is given by

[MNR 1995]

Options:

A) $ \frac{1}{\sqrt{{\mu _{0}}K _{0}}} $

B) $ \frac{1}{{\mu _{0}}K _{0}} $

C) $ \sqrt{{\mu _{0}}K _{0}} $

D) $ {\mu _{0}}K _{0} $

Show Answer

Answer:

Correct Answer: C

Solution:

$ \mu =\sqrt{\frac{\mu \varepsilon }{{\mu _{0}}{\varepsilon _{0}}}}=\sqrt{{\mu _{r}}K} $



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