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What is the refractive index of a medium if the critical angle for total internal reflection is 30° when light travels to air?

Practice Questions

1 question
Q1
What is the refractive index of a medium if the critical angle for total internal reflection is 30° when light travels to air?
  1. 1.73
  2. 1.00
  3. 1.41
  4. 1.50

Questions & Step-by-step Solutions

1 item
Q
Q: What is the refractive index of a medium if the critical angle for total internal reflection is 30° when light travels to air?
Solution: Using sin(30°) = 0.5, n = 1/sin(30°) = 1/0.5 = 2. Therefore, the refractive index is 2.
Steps: 0

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