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← ScienceWhich mechanism causes signal fading when polarized radio waves encounter rough terrain?
A)Faraday rotation cancels aligned fields
B)Brewster's angle eliminates reflection
C)Depolarization randomizes wave alignment✓
D)Chirality alters wave propagation speed
💡 Explanation
Depolarization causes fading because reflection off randomly oriented surfaces disrupts the original polarization, leading to signal alteration. Therefore, the signal degrades rather than maintaining its integrity because uniform polarization is necessary for effective transmission.
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