The experimenter changing the angle of incidence, and observing both the refracted and reflected rays. At a certain angle of incidence, the refracted ray of light completely disappears and we have a situation when the ray of light is completely reflected internally. (1) What is the smallest angle of incidence when this phenomenon occurs? (2) Use the formula for total internal reflection to calculate the index of refraction of the glass.

The experimenter changing the angle of incidence, and observing both the refracted and reflected rays. At a certain angle of incidence, the refracted ray of light completely disappears and we have a situation when the ray of light is completely reflected internally. (1) What is the smallest angle of incidence when this phenomenon occurs? (2) Use the formula for total internal reflection to calculate the index of refraction of the glass.

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