33. Geometric Optics
Refraction of Light & Snell's Law
4:02 minutes
Problem 58
Textbook Question
Textbook Question(II) A beam of light is emitted 7.7 cm beneath the surface of a liquid and strikes the surface 7.2 cm from the point directly above the source. If total internal reflection occurs, what can you say about the index of refraction of the liquid?
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