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This is a problem about linearly polarized EM wave, please see the translation below. You only need to answer the first 2 questions, which are not too much for you. I appreciate and if you keep me posted, i will sure to give you a thumb up :D

Suppose this wave is linearly polarized, with ε a unit vector define the direction of polarization and kI = kx the incident wave vector

(a). Under what conditions do the vectors kI, ε must satisfy? Given the definition of the quantities appearing in the exponential, as well as the equation that they satisfy ?

(b). An idealized mirror is described by an interface between vacuum and a perfect conductor (with E = 0 inside), Show that the amplitude of the reflected wave, ER 0 and the incident wave, EI 0, satisfy the relation (see the equation below) for a normal mirror incidence at x = l and where we choose kR = -kx for the reflected wave.

Considérons donc une onde (électromagnétique) monochromatique plane émise par la source et incidente sur un tel interféromètr


 
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a EM waue ield be O トR So

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