If \[{{\varepsilon }_{0}}\] and \[{{\mu }_{0}}\] are the electric permittivity and magnetic permeability in vacuum, \[\varepsilon \] and \[\mu \] are corresponding quantities in medium, then refractive index of the medium is

\[\sqrt{\frac{\varepsilon }{{{\varepsilon }_{0}}}}\]

\[\sqrt{\frac{{{\varepsilon }_{0}}\mu }{\varepsilon {{\mu }_{0}}}}\]

\[\sqrt{\frac{{{\varepsilon }_{0}}{{\mu }_{0}}}{\varepsilon \mu }}\]

\[\sqrt{\frac{\varepsilon \mu }{{{\varepsilon }_{0}}{{\mu }_{0}}}}\]

If \[{{\varepsilon }_{0}}\] and \[{{\mu }_{0}}\] are the electric perm

1.	If \[{{\varepsilon }_{0}}\] and \[{{\mu }_{0}}\] are the electric permittivity and magnetic permeability in vacuum, \[\varepsilon \] and \[\mu \] are corresponding quantities in medium, then refractive index of the medium is
A.	\[\sqrt{\frac{\varepsilon }{{{\varepsilon }_{0}}}}\]
B.	\[\sqrt{\frac{{{\varepsilon }_{0}}\mu }{\varepsilon {{\mu }_{0}}}}\]
C.	\[\sqrt{\frac{{{\varepsilon }_{0}}{{\mu }_{0}}}{\varepsilon \mu }}\]
D.	\[\sqrt{\frac{\varepsilon \mu }{{{\varepsilon }_{0}}{{\mu }_{0}}}}\]
Answer» E.