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What is the approximate critical angle for total internal reflection for diamond if the refractive...

Physics
JAMB 1995
What is the approximate critical angle for total internal reflection for diamond if the refractive index of diamond is 2.42?
  • A. 21o
  • B. 22o
  • C. 23o
  • D. 24o
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Correct Answer: Option D
Explanation
SinC = \(\frac{1}{n}\)V2

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

SinC =24o
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