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← ScienceWhich outcome reduces signal fidelity during waveguide propagation?
A)Multimode dispersion broadens pulse envelope✓
B)Increased frequency improves signal strength
C)Lower impedance minimizes reflections
D)Polarization maintains constant electric field
💡 Explanation
Multimode dispersion results from different modes travelling at varying speeds; because these temporal disparities cause pulse broadening, waveguide signals deteriorate; therefore signal fidelity decreases, rather than strengthening or minimizing reflections, which have different effects.
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