Question
State two conditions necessary for total internal reflection to occur.
✓
Answer
The two necessary conditions for total internal reflection are:
i.The light must travel from a denser medium to a rarer medium.
ii. The angle of incidence must be greater than the critical angle for the pair of media.
i.The light must travel from a denser medium to a rarer medium.
ii. The angle of incidence must be greater than the critical angle for the pair of media.
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