In physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. [1]

Apr 22, 2026 · refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. For example, waves travel faster in deep water than in shallow.

Aug 9, 2025 · Refraction of light is the shifting of direction of a light ray when it passes from one transparent medium with certain density into another with a different density.

Sep 10, 2025 · Learn what refraction is, why light bends and how it affects vision, lenses, rainbows and other parts of your everyday life.

Oct 20, 2021 · In physics, refraction is the change in speed and direction of a wave as it enters a new medium. Perhaps the most familiar example is the refraction of white light in a prism, bending …

Apr 30, 2026 · Refraction of light occurs when a light ray changes its direction as it passes from one medium to another, due to a change in its speed. This change occurs because different media have …

Learn about refraction, ray diagrams and how convex lenses bend light rays with this guide for KS3 physics students aged 11-14 from BBC Bitesize.