Expert Film: Chris Marriott tells us how white light is dispersed through diffraction glasses.

This video explores how white light disperses through diffraction glasses, creating colourful rainbow patterns due to the combined effects of refraction and diffraction. It explains how the tiny parallel lines in the lenses cause light waves to overlap, producing interference patterns that result in the multiple images observed. Learners will gain insight into the physical processes behind diffraction, interference, and the real-world application of these phenomena.