Hilda looks at a CD and sees different colors. Which best explains why she sees different colors when light strikes a CD?

The closely spaced grooves on a CD act like a diffraction grating, spreading white light into its component wavelengths. Different wavelengths bend by different amounts, so they reach Hilda’s eyes at different angles and appear as different colors. Thus, the best explanation is that different wavelengths of light bend at different angles.

AI-written and checked against the verified answer.