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← ScienceWhich outcome occurs when an oil film's varying thickness on wet asphalt causes differential reflected light?
A)Constructive interference produces vibrant iridescence✓
B)Refractive index homogenizes the light's frequencies
C)Polarization filters only enhance perpendicular waves
D)Diffraction patterns scramble the color distribution
💡 Explanation
Constructive interference results in brighter colors because the mechanism of *thin-film interference* amplifies specific wavelengths matching the film thickness; therefore, iridescence appears, rather than homogenous light or filtered polarization, under sunlight.
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