- #1
monke
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Homework Statement
A beam of light in air is incident on a stack of 4 flat transparent materials with indicies of refraction 1.20, 1.40, 1.32, and 1.28. If the angle of incidence for the beam on the first of the four materials is 60*, what angle does the beam make witht the normal when it emerges into the air after passing through the entire stack?
Homework Equations
what is the best way to start and understand this type of problem?
The Attempt at a Solution
Do I just use Snell"s Law and use the incides of refraction of air for n sub i and 60 for theta sub i?
Thanks in advance :)