Question

Suppose you are using total internal reflection to make an efficient corner reflector. If there is air outside and the incident angle is 54°, what must be the minimum index of refraction of the material from which the reflector is made?

answer to 4 decimal places.

Answer 1

Answer:-

$Sin(\theta_c)=\frac{n_2}{n_1}\\ n_1=\frac{1.00293}{sin54^o}\\ \boxed{n_1=1.2364}$

the minimum refractive index = 1.2364