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← ScienceWhich outcome occurs when reflective coating thickness varies in optical flats?
A)Alternating constructive, destructive interference✓
B)Increased chromatic aberration effects
C)Uniform reduction in reflection
D)Polarization shifts within transmitted light
💡 Explanation
Irregular coating thickness produces varying path lengths. Constructive and destructive interference occurs because reflected waves either align to increase intensity or cancel out, therefore colorful band patterns appear rather than uniform reflection due to consistent thin-film conditions.
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