- #1
nmsurobert
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Homework Statement
A plane-wave is incident on an air-glass interface at 30° as shown below. Calculate the phase difference between A and B. Assume λo=1μm.
attatched is an image that looks like this.
________________________
--------------------------- A
--------------------------- B
________________________
the angle is incident from above at 30°. the distance between A and B is 1μm.
Homework Equations
The Attempt at a Solution
i really just need a bit of guidance. I feel as if i should have a formula for this but i don't. the book and my class notes aren't being much help either.