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← ScienceWhich 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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