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What is the Brewster's angle for light traveling from air (n1 = 1) to glass (n2

Practice Questions

Q1
What is the Brewster's angle for light traveling from air (n1 = 1) to glass (n2 = 1.5)?
  1. 30 degrees
  2. 45 degrees
  3. 60 degrees
  4. 53 degrees

Questions & Step-by-Step Solutions

What is the Brewster's angle for light traveling from air (n1 = 1) to glass (n2 = 1.5)?
  • Step 1: Identify the refractive indices. For air, n1 = 1 and for glass, n2 = 1.5.
  • Step 2: Use the formula for Brewster's angle: θ_B = arctan(n2/n1).
  • Step 3: Substitute the values into the formula: θ_B = arctan(1.5/1).
  • Step 4: Calculate the value: θ_B = arctan(1.5).
  • Step 5: Use a calculator or a table to find arctan(1.5), which is approximately 56.31 degrees.
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