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← ScienceWhich consequence results when anti-reflective coatings degrade on LiDAR?
A)Increased signal backscatter and noise✓
B)Reduced laser diode junction temperature
C)Improved time-of-flight measurement accuracy
D)Decreased power supply current draw
💡 Explanation
Increased backscatter occurs with coating failure because *thin-film interference* reduces destructive interference; therefore the reflectivity increases, yielding higher noise, rather than alternative laser cooling effects arising only from different laser parameters.
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