Question: Suppose a plane EM-wave with electric field = x10 cos (kz-cot) Vm is incident from air on a dielelectric occupying the region z 20.

Suppose a plane EM-wave with electric field = x10 cos (kz-cot) Vm

Suppose a plane EM-wave with electric field = x10 cos (kz-cot) Vm is incident from air on a dielelectric occupying the region z 20. Assuming that the permitivity of the medium is 48 and permeability, the electric field of the reflected waves can be written as E = x cos(kz-cot) 10 =-xcc = -x cos(kz + cot 10 =-x---cos (kz - cot) 3 20 =xcos (kz - cot) 3

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