Question

Figure shows a ray of light as it travels from medium A to medium B. Refractive index of the medium B relative to medium A is

A. `sqrt(3)//sqrt(2)`
B. `sqrt(2)//sqrt(3)`
C. `1//sqrt(2)`
D. `sqrt(2)`

Answer 1

Correct Answer - A
By definition, refractive index of medium B w.r.t. A is `n = (sin60^(@))/(sin45^(@)) = (sqrt(3)//2)/(1//sqrt(2)) = (sqrt(3))/(sqrt(2))`.