alleryThe angle at which light leaves the second face of a prism is the angle of:
AIncidence
BReflection
CElevation
DEmergence
Answer & Solution
Correct answer: D. Emergence
1. Light enters at the first face and leaves at the second.
2. The angle at that exit has its own name.
3. It is the angle of emergence.
_Source: syllabus Physics Part II, Chapter 9, Ray Optics and Optical Instruments._
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