Question

With the help of the given ray diagram, calculate the refractive index of Medium 2 with respect to Medium 1.

(Given that `sqrt 3` = 1.732)

Answer 1

Given: Angle of incidence (i) = 30°

The given 130° is the obtuse angle, so the angle of refraction:

r = 180° − 130°

= 50°

Using Snell’s Law:

μ₂₁ ​= `(sin i)/(sin r)`

= `(sin 30^circ)/(sin 50^circ)`

= `0.5/0.766`

= 0.65