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## Homework Statement

Determine the state of polarization of the following wave and its azimuthal angle:

##E= \sqrt{3} E_0 \cos(kz-\omega t) \hat{x} + E_0 \cos(kz- \omega t + \pi) \hat{y}##

## The Attempt at a Solution

How do I calculate the azimuthal angle?

My textbook only says: "

*the azimuthal angle is defined as the angle between the plane of vibration and the plane of incidence*". Since no diagrams are provided I'm not sure if I understand it correctly... Is this the angle it makes with the x-axis if it is linearly polarized (or if elliptically polarized, the angle of the major axis with respect to the x-axis)?

I think the state of polarization is

**linearly polarized**since E

_{y}lags E

_{x}by π, right? Also the E

_{x}has a greater amplitude than E

_{y}by a factor of √3.

Any help is greatly appreciated.