A ray diagram showing refraction at the boundary between air ... The diagram shows that as wave travels into a denser medium, such as water, it slows down and wavelength decreases.

Refraction is the change in direction of a wave as it travels from one medium to another. For instance, when light travels from air to glass or water waves travel from deep to shallow water.

Orion plans to utilise ore-sorting, a modern x-ray-refraction (XRF) sensing process, to discard waste rock before milling and ...