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A glass-air ray meets the surface at 60° to it. C=40°. What occurs?

APartial reflection and refraction
BTotal internal reflection
CRefraction along the boundary
DAbsorption without reflection
Answer & Solution
Correct answer: A. Partial reflection and refraction
The incidence measured from the normal is 30°, below the 40° critical angle, so part of the light is refracted.
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