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1. |
An elliptically polarized wave travelling in the position Z-direction in air has x and y componentsEX = 3 sin (ωt - βz) V/mEY = 6 sin (ωt - βz + 75°) V/mIf the characteristic impedance of air is 360 Ω, the average power per unit area conveyed by the wave is |
A. | 8 W/m2 |
B. | 4 W/m2 |
C. | 62⋅5 mW/m2 |
D. | 125 mW/m2 |
Answer» D. 125 mW/m2 | |