The Chinese have skillfully carved figurines made of a translucent greenish material called serpentine. A ray of light traveling in air strikes the flat surface of a serpentine figurine (n = 1.555). If the ray in the serpentine makes an angle of 33° with the normal, what is the angle of incidence?

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d=0.02m

Explanation:

The key of the exercise is to be able to graph the problem to be able to develop it. After that you simply proceed through a triangular relationship.

Then I leave the graph of the problem and give the solution.

So things, under the given relationship, we have,

*The value of 0.04 is taken because the triangle given in the graph must be divided in half, to obtain rectangular triangles.