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A time-harmonic electromagnetic field travelling in free space and perpendicularly incident upon a flat surface of distilled water (8=81€0, u = uo), as shown in the figure below, creates a reflected field on the free-space side of the interface and a transmitted field on the water side of the interface. Assuming the incident E; , reflected E,, and transmitted electric fields are given, respectively, by _ikoa â . E; = E, e E, = TE ellom E, = TE, eikâ where Eo is a constant ko = 0.74€ ,k = 0), 0/11€ Determine the reflection coefficient? and transmission coefficient t. X Reflected Incident + ? EO, lo e = 8180 X Transmitted u = Ho

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