Question

Write the two conditions of total internal reflection

Answer 1

Answer:

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For total internal reflection to occur, two conditions must be met: The index of refraction must decrease across the boundary in the direction of light refraction. The angle of incidence of the light ray must exceed the critical angle of the interface. Ray must travel from denser to rarer medium.

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Answer 2

Conditions for total internal reflection

• the light ray must be traveling from denser medium to rarer medium.

• the angle of incidence should be greater than the critical angle of the denser medium