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€1,1 Z=0 E2, 12 KT Given the magnetic component of the incident wave (from the medium with 1 and μ₁) being B₁ = Bloe(₁-wt) y where K₁=k₁ sin 0₁₂-k₁ cos 0₁ê (with k₁> 0 and 0 <0</2). (a) What is the propagating speed of the electromagnetic wave in the medium with permittivity ₁ and permeability μ₁? (5%) (b) What is the wave vector KR of the reflected wave? (5%) (c) What is the wave vector kr of the transmitted wave? (5%) (d) What are the (vector) amplitudes of the magnetic component of the reflected and the transmitted waves? I.e., find the BRO and BTO in BR = BROe¹(K-ut) and BT = Broe(kr--wt). Provide your detailed calculations. (10%) 12 KR