Which expression below is the correct one for the phasor electric field of the reflected wave? O E,= - (â, 120 + â,50) e-J(5x-122) (V/m) - (a, 50+, 120) e-j(5-12x) (V/m) OE,=-(â,50 +â,120) e-(12-52) (V/m) OE,(a, 120 + a₂50) e (12-5x) (V/m) OE,
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