JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES

1 Medium

1 of 1

Understanding +4 | -1

{\varepsilon _0}

and

{\mu _0}

are respectively, the electric permittivity and the magnetic permeability of free space,

\varepsilon

and

\mu

the corresponding quantities in a medium, the refractive index of the medium is

View answer and explanation

Correct option: A

\sqrt {\frac{{\mu \,\varepsilon }}{{{\mu _0}\,{\varepsilon _0}}}}

Option A (

\sqrt {\frac{{\mu \,\varepsilon }}{{{\mu _0}\,{\varepsilon _0}}}}

) is correct because the refractive index is the square root of the ratio of the product of permeability and permittivity of the medium to that of free space.

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