Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Does the incidence angle and refraction angle have to add up to 90

  1. Jan 26, 2014 #1
    does the incidence angle and refraction angle have to add up to 90

    I'm trying to figure out the geometry of thin film refraction!
     
  2. jcsd
  3. Jan 26, 2014 #2
    Not in general. They don't have to.
    They do add up to 90 degrees when the angle of incidence is the Brewster angle and the reflected light is fully polarized.
     
  4. Jan 26, 2014 #3

    sophiecentaur

    User Avatar
    Science Advisor
    Gold Member
    2015 Award

    Where did you read anything to that effect? Snells law doesn't lead to that general conclusion, does it? Are you referring to a certain, special situation?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted
Similar Discussions: Does the incidence angle and refraction angle have to add up to 90
Loading...