Question

What are two conditions of Total Internal Reflection?

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Answer 1

Answer:

the light must be travelling from a more dense medium into a less dense medium (ie glass to air) the angle of incidence must be greater than the critical angle.

Answer 2

Answer:

For total internal reflection to take place

• light must travel from a denser medium to a rarer medium .

• the angle of incidence inside the denser medium must be greater than the critical angle. i.e., ∠i>∠c.