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} $
