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← ScienceWhich consequence results when thin-film interference alters reflectivity?
A)Iridescence becomes visible on soap films✓
B)Material refractive index remains constant
C)Transmission increases at every wavelength
D)Reflection is consistently independent of angle
💡 Explanation
Iridescence becomes visible on soap films because constructive and destructive interference creates wavelength-dependent reflection, thin-film interference being the specific mechanism. Therefore we seethe changing rainbow hues, rather than uniform reflectivity because other wavelengths are suppressed.
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