Question 4: EM waves

Question

Choose the correct statement.

Accepted Answer

When light travel in meta-material, physical characteristics remain unchanged.
$	herefore$ $v = {c \over {|n|}}$
where, | n | is the relative refractive index of meta-material.
As, $n = {c \over v} \Rightarrow |n| = {{{n_{med}}} \over {{n_{air}}}}$
$ \Rightarrow \left| n ight| = {{{\lambda _{air}}} \over {{\lambda _{med}}}} \Rightarrow {\lambda _{med}} = {{{\lambda _{air}}} \over {\left| n ight|}}$

Answer

The speed of light in the meta-material is $v = c|n|$.

Answer

The speed of light in the meta-material is $v = {c \over {|n|}}$.

Answer

The speed of light in the meta-material is v = c.

Answer

The wavelength of the light in the meta-material ($\lambda$
m
) is given by $\lambda$
m
= $\lambda$
air
| n |.

EM waves

Choose the correct statement.

Choose the correct answer: