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← ScienceWhich imaging consequence appears when coherence length drops prematurely?
A)Increased speckle artifact prominence✓
B)Reduced chromatic aberration effects
C)Improved image resolution globally
D)Enhanced signal-to-noise amplitude
💡 Explanation
Excessive surface roughness causes the emitted beam to lose coherence via increased path length differences; therefore speckle artifacts start dominating, rather than resulting in a clearer imaging picture because chromatic aberration is not influenced by coherence in this case.
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