Three materials with n₁

Question

Three materials with n₁ < n₂ < n₃ are arranged in layers of uniform thickness.A light ray in air enters the first layer at an angle of incidence of 40° and the ray eventually exits the third layer at the refracted angle θ in air.What is the value of θ? A) Some angle more than 40°. B) Insufficient information to answer. C) 40°. D) Some angle less than 40°.

Quizplus · Accepted Answer

According to Snell's Law, when light passes through multiple layers and returns to the original medium (air in this case), the angle of incidence is equal to the angle of refraction. Thus, θ = 40°.

Three Materials with N1 < N2 < N3 Are Arranged

Three Materials with N₁ < N₂ < N₃ Are Arranged