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Which outcome results when a thin oil film contaminates an Anti-Reflective coated lens?

A)Reduced glare, unchanged image clarity
B)Increased chromatic aberration occurs
C)Newton's rings are made visible
D)The coating's index matching fails.

💡 Explanation

Newton's rings appear because interference between reflections from the oil film's top and bottom surfaces create constructive and destructive regions; therefore visible rings form, rather than glare reduction or similar effects, because of the oil film's geometry.

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