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mathman44
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Homework Statement
(Refraction)
A parallel beam of width W is incident on a interface. The index of refractions are n1 on
the incident side and n2 on the transmitted side.
(a) Find an equation that gives the width of the transmitted beam. (Assume there is an
exit beam. IE we are not above the angle of total internal reflection.)
Homework Equations
n1 sin theta1 = n2 sin theta2
The Attempt at a Solution
If I draw a diagram, it seems that the refracted width is the same as the incident width. Anyone care to explain?