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← ScienceWhich risk increases when dissimilar optical path lengths combine?
A)Destructive interference reduces signal amplitude✓
B)Increased chromatic aberration blurs image
C)Fresnel diffraction broadens Airy disks
D)Polarization shifts impact Sagnac effect
💡 Explanation
Unequal path lengths increase destructive interference, because phase differences vary across the beam. This reduces resulting signal strength through signal cancellation. Therefore, weakened signal amplitude results, rather than the other optical effects which require different conditions.
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