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A periscope consists of two 90-45-45º prisms (as shown in Figure) are made of lossless glass with n=1.5. The reflection off the inclined planes are 100% (total reflection per Snell's

Law), i.e. |T|= 1. (a) What power(in dB) is the transmitted signal through the bottom prism relative to the input? (b) If the incoming signal has a magnetic field given by: H,(x,f) = 23.77 sin(10"r-kx)mA/m, what is the first reflected E-field? What is k?feld B

Fig: 1

Fig: 2