Light is incident normal to the left side of a TiO2 prism (n = 2.62) in the shape of an equilateral triangle as shown. A thin dielectric film is placed on the top side of the prism. What is the maximum index of refraction that the film may have if the light is to be totally reflected by the thin film-prism interface? Thin film n = 2.62 O A. 1.31 О В. 1.85 Ос. 2.01 O D. 2.27

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Light is incident normal to the left side of a TiO2 prism (n = 2.62) in the shape of an equilateral
triangle as shown. A thin dielectric film is placed on the top side of the prism. What is the maximum
index of refraction that the film may have if the light is to be totally reflected by the thin film-prism
interface?
Thin film
n = 2.62
O A. 1.31
О В. 1.85
Ос. 2.01
O D. 2.27
Transcribed Image Text:Light is incident normal to the left side of a TiO2 prism (n = 2.62) in the shape of an equilateral triangle as shown. A thin dielectric film is placed on the top side of the prism. What is the maximum index of refraction that the film may have if the light is to be totally reflected by the thin film-prism interface? Thin film n = 2.62 O A. 1.31 О В. 1.85 Ос. 2.01 O D. 2.27
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