Question

Figure 1 shows a ray of light starting from medium 1 where the index of refraction, η₁ = 1.33,

then enters medium 2, where the index of refraction, η₂ = 1.50, and then exits into medium 3,

where the index of refraction, η₃ = 1.00, where Θ₁ = 30°. Use the properties of the indices of refraction for light velocity, and Snells’s Law to answer the following questions.

Figure 1 01 η2 n3

11. What are the materials in medium 1, medium 2 and medium3?

12. In which medium is the speed of the light ray the greatest?

Answer 1

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