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← ScienceWhich consequence results when the reflective coating fails on interferometer optics?
A)Reduced fringe contrast occurs✓
B)Increased beam divergence appears
C)Polarization drift accelerates rapidly
D)Wavelength instability grows substantially
💡 Explanation
Reduced fringe contrast occurs, because the interference mechanism relies on amplitude matching of the interfering beams. Imperfect reflection causes unequal amplitudes, therefore decreasing fringe visibilty, rather than altering divergence or wavelength.
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