Physics
State two conditions necessary for total internal reflection to occur.
Refraction Plane Surfaces
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Answer
The two necessary conditions for total internal reflection are —
- The light must travel from a denser medium to a rarer medium.
- The angle of incidence must be greater than the critical angle for the pair of media.
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Related Questions
Figure below shows two rays A and B travelling from water to air. If the critical angle for water-air surface is 48°, complete the ray diagram showing the refracted rays for each. State conditions when the ray will suffer total internal reflection.
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