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Which picture best demonstrates the phenomenon of diffraction?
Compact discs
A triangular prism with a rainbow coming from it.
Light coming through tinted glass panels.
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GPT-5 mini
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Compact discs.
The fine, regularly spaced tracks on a CD act as a reflection diffraction grating that spatially separates wavelengths by interference, producing rainbow patterns. A triangular prism shows dispersion by refraction (not diffraction), and tinted glass mainly absorbs/filters light.
The fine, regularly spaced tracks on a CD act as a reflection diffraction grating that spatially separates wavelengths by interference, producing rainbow patterns. A triangular prism shows dispersion by refraction (not diffraction), and tinted glass mainly absorbs/filters light.
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