The refractive index of a medium x with respect to a medium y is 2/3 and - Physics - Light - Reflection and Refraction

Question

The refractive index of a medium ?x? with respect to a medium ?y?
is 2/3
and the refractive index of medium ?y? with respect to medium ?z?
is 4/3
Find the refractive index of medium ?z? with respect to medium ?x?
If the
speed of light in medium ?x? is 3 ? 108 ms?1, calculate the speed
of light
in medium ?y?

Sanat K Mukherjee · Accepted Answer

Dear Student,
The refractive index of a medium (x) with respect to a medium (y) =
nxy=nxny=23
The refractive index of a medium (y) with respect to a medium (z) =
nyz=nynz=43
The refractive index of a medium (z) with respect to a medium (x) =
nzx=nznx=nynx×nzny=1nyz×1nxy=34×32=98
Regards