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← ScienceWhich mechanism causes dark fringes in infrared spectroscopy?
A)Destructive interference diminishes transmitted intensity✓
B)Refraction attenuates infrared propagation velocity
C)Diffraction shifts spectral wavelength maxima
D)Polarization filters particular molecule vibrations
💡 Explanation
Destructive interference minimizes transmitted light at specific wavelengths because two waves cancel each other, therefore producing dark fringes, rather than constructive effects, under those resonance conditions.
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