Light travels from glass into air with an angle of refraction (θr) of 36.1 °. What is the angle of incidence (θi) if the refractive index of glass is 1.5 and the refractive index of air is 1.
The angle of incidence is: ° (Give your answer to the nearest 10th of a degree)
I worked it out on paint so that i can write it myself.
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