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Which outcome occurs when a Fabry-Pérot interferometer's mirrors misalign?

A)Reduced fringe visibility occurs
B)Increased device energy efficiency
C)Wavelength shift to shorter values
D)Higher order modes become dominant

💡 Explanation

Reduced fringe visibility occurs because mirror misalignment distorts the interference pattern, decreasing the intensity contrast. This is due to changes in the optical path length impacting constructive interference rather than increased energy or wavelength shift because of altered internal reflections.

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