What is the approximate critical angle for total internal reflection for diamond if the refractive index of diamond is 2.42?

A.

21^o

B.

22^o

C.

23^o

D.

24^o

View answer & explanation

Correct answer is D

SinC = \(\frac{1}{n}\)V₂

SinC = \(\frac{1}{2.42}\)

SinC =24^o

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