What is the Brewster's angle?

Practice Questions

Q1
What is the Brewster's angle?
  1. The angle at which light is completely absorbed
  2. The angle at which light is reflected with maximum polarization
  3. The angle at which light refracts without any reflection
  4. The angle at which light intensity is halved

Questions & Step-by-Step Solutions

What is the Brewster's angle?
Correct Answer: Brewster's angle is the angle of incidence at which light is reflected with maximum polarization.
  • Step 1: Understand that light can be reflected and refracted when it hits a surface.
  • Step 2: Know that when light reflects off a surface, it can become polarized, meaning the light waves vibrate in a specific direction.
  • Step 3: Learn that Brewster's angle is a special angle where the reflected light is maximally polarized.
  • Step 4: Remember that Brewster's angle depends on the materials involved, like air and glass.
  • Step 5: Use the formula to find Brewster's angle: tan(θ) = n2/n1, where n2 is the refractive index of the second material and n1 is the refractive index of the first material.
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