Refraction of light. Abstract artwork entitled: insThe prismsins (1992) by Andrzej Dudzinski. Beams of light are seen passing through a number of prisms, and splitting by refraction into its component wavelengths to produce a spectrum of colour. There are seven major colours of the spectrum in the visible light range. Also depicted are circular particles of light, some of which have a wave-like form. Light behaves with both wave-like and particle-like properties.