The Critical Angle for an Air-Glass Interface Is 42

question 78

Multiple Choice

The critical angle for an air-glass interface is 42.6°.A light ray in air hits the interface,and the reflected ray is 100% polarized.What is the angle of refraction for that ray?

• A)47.4°
• B)55.9°
• C)24.3°
• D)65.7°
• E)34.1°

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