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← ScienceWhich outcome compromises LIDAR's distance resolution when atmospheric coherence degrades?
A)Speckle contrast is strongly reduced
B)Return signal shows reduced intensity✓
C)Beam divergence increases proportionally higher
D)Wavelength stability sees increased instability
💡 Explanation
Reduced atmospheric coherence causes the spread of the reflected laser beam, therefore the return signal intensity weakens because atmospheric turbulence disrupts phase coherence, resulting in signal loss rather than the other factors mentioned.
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