Practice Problem on Refraction
                                                  -----
                                         /        \ 60            
                                        /          \             
                                       /            \           
                                      /              \         
                                     /                \       
     90                             /                  \     
     |                             /                    \   
     |                            /                      \ 
  ------- 0      n = 1.6         /      n = 1.6           \   n = 1.0 
     |                          /                          \
     |                         /                            \
    -90                       /                              \
                             /                                \
                            /                                  \
                           /                                    \
                          / 60                                   \
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Light is incident from the left at -26 degrees relative to the horizontal. What is the angle of the exiting light relative to the horizontal? Give your answer in degrees to two decimal places.

ANSWER = Total internal reflection at the second interface.