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Which undesired outcome occurs when a submarine's radio antenna exceeds maximum propagation depth?

A)Signal amplitude decays exponentially
B)Antenna induces structural resonance
C)Doppler shift distorts transmissions
D)Refraction increases channel multipath

💡 Explanation

Exceeding the maximum propagation depth dramatically increases absorption because electromagnetic waves attenuate exponentially due to **dielectric losses** in seawater, therefore the signal weakens rapidly rather than experiencing structural resonance which involves mechanical frequencies.

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