What is the critical angle c for total internal reflection if the material is clear acrylic, with a refractive index of 1.5?

Question

Physics

Reina Mckay

2 July, 08:09

What is the critical angle c for total internal reflection if the material is clear acrylic, with a refractive index of 1.5?

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Answers (1)

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Rocco Peterson · Answer 1

Refractive index is related by the formula:

n = sin (∅₂) / sin (∅₁)

Here, ∅₂ = 90° in the case of total internal reflection.

1.5 = 1/sin (∅₁)

∅₁ = 41.8°