1.A ray of light strikes a surface and is reflected so that the angle between the incident ray and the reflected ray is 30 degrees. What is the angle of incidence?
Answer : _________ degrees (just input the number)
2.A ray of light strikes a surface and is reflected so that the angle between the incident ray and the reflected ray is 30 degrees. What is the angle of reflection?
Answer : ______ degrees (just input the number)
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