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← ScienceWhich signal distortion arises when multi-path propagation occurs?
A)Signal fading via destructive interference✓
B)Frequency shift by Doppler effect
C)Dispersion from varying refractive index
D)Attenuation due to material absorption
💡 Explanation
Signal fading happens because multi-path propagation creates waves arriving out of phase; therefore, destructive interference causes amplitude reduction, rather than frequency shift or attenuation, which occur due to Doppler effect and absorption independently.
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