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## Homework Statement

http://xs.to/image-A876_4BAF6DF1.jpg

alpha = 54.6 degrees

I need to calculate phase difference between E(perpendicular) and E(parallel) polarization components.

## Homework Equations

## The Attempt at a Solution

Problem is I don't know any relevant equations!

Can I get the phase difference from Fresnel coefficients somehow??

Or actually I don't know even how to get the polarization components calculated.

So if someone could point me to right direction it would be much appreciated!