Question

If ${\varepsilon _0}$ and ${\mu _0}$ represent the permittivity and permeability of vacuum and $\varepsilon $ and $\mu $ represent the permittivity and permeability of medium, then refractive index of the medium is given by

Accepted Answer

$\sqrt {\frac{{{\rm{\mu \varepsilon }}}}{{{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}}}} $

Answer

$\sqrt {\frac{{{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}}}{{{\rm{\mu \varepsilon }}}}} $

Answer

$\sqrt {\frac{{\rm{\mu }}}{{{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}}}} $

Answer

$\sqrt {\frac{{{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}}}{{\rm{\mu }}}} $

JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES

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