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Which risk increases because of imperfections in interferometer mirrors?

A)Reduced interference fringe contrast
B)Increased instrument signal bandwidth
C)Greater spatial resolution achieved
D)Enhanced monochromatic source sensitivity

💡 Explanation

Reduced interference fringe contrast results from surface defects; **destructive interference** within coherent light is amplified because imperfections cause phase shifts, therefore fringe visibility suffers rather than resolution improving at the detector, assuming constant light.

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