The absolute refractive index of water is 4/3. What is the critical an – InterviewSolution

1.

The absolute refractive index of water is 4/3. What is the critical angle ?

Answer»

Absolute refractive index of water = 4/3

We know that sin C = 1/Refractive index

Sin C = 1/4/3 = sin C = 3/4 = 0.75

Critical angle of water = C = 48°5′ = 48.5°.

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