Question

If `epsilon_0` and `mu_0` are respectively the electric permittivity and the magnetic permeability of free space and `epsilon` and `mu` the corresponding quantities in a medium, the refractive index of the medium is
A. (a) `sqrt(((muepsilon)/(mu_0epsilon_0)))`
B. (b) `(muepsilon)/(mu_0epsilon_0)`
C. (c) `sqrt(((mu_0epsilon_0)/(muepsilon)))`
D. (d) `sqrt(((mumu_0)/(epsilonepsilon_0)))`

Answer 1

Correct Answer - A
Refractive index`=c/v`
`=(1)/(sqrt(mu_0epsilon_0))xx(sqrt(muepsilon))/(1)=sqrt((muepsilon)/(mu_0epsilon_0))`