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What is the critical angle for light traveling from glass (n = 1.5) to air (n = 1)? (2019)

Practice Questions

1 question
Q1
What is the critical angle for light traveling from glass (n = 1.5) to air (n = 1)? (2019)
  1. 30 degrees
  2. 41.8 degrees
  3. 48.6 degrees
  4. 60 degrees

Questions & Step-by-step Solutions

1 item
Q
Q: What is the critical angle for light traveling from glass (n = 1.5) to air (n = 1)? (2019)
Solution: Using the formula sin(c) = n2/n1, we find sin(c) = 1/1.5, thus c = sin^(-1)(2/3) ≈ 41.8 degrees.
Steps: 0

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