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← ScienceWhich outcome occurs when an oil film thickness approaches incident light's wavelength?
A)Constructive interference creates vivid iridescence✓
B)Total internal reflection blocks all images
C)Refraction disperses component wavelengths
D)Diffraction reduces spatial reflection rate
💡 Explanation
Constructive Interference occurs because the wavelengths that meet are in phase, therefore vivid iridescence is created, rather than destructive interference or other optical effects which require different conditions.
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