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← ScienceWhich interference diminishes signal clarity in fiber optics?
A)Modal dispersion causes signal broadening✓
B)Brewster's angle reduces reflections
C)Raman scattering enhances signal gain
D)Fresnel diffraction sharpens signal edges
💡 Explanation
Modal dispersion increases because light rays travel varying path lengths; thereby temporal spreading makes decoding difficult rather than increased signal gain, diffraction, or reduced reflections.
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