Physics : A beam of light enters from air (a =1.0)
Physics : A beam of light enters from air (a =1.0)
Subject: Physics   / General Physics
Question
A beam of light enters from air (a =1.0) into three layered surface. Each layer has different refractive index. Trace the path of the light beam as it goes through each layer.
na = 1.00
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n1 = 1.45
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n2 = 1.33
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n3 = 3.50
At what angle should the beam enter the surface so not refraction will be observed?