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Which outcome occurs due to phase distortion affecting a composite signal traversing a long fiber optic cable at its chromatic dispersion minimum?

A)Inter-symbol interference becomes more severe
B)Signal power increases significantly
C)Modal noise is completely eliminated
D)Bit error rate improves substantially

💡 Explanation

Increased Inter-symbol interference occurs because chromatic dispersion, even at its minimum, causes different wavelengths in the signal to travel at slightly different speeds. Therefore, pulses broaden and overlap, rather than maintaining separation.

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