If the wavelength is shorter (such as blue light), it will refract to a greater extent (away from the normal) as its speed changes while exiting the prism. Dispersion is the dependence of lightâs phase velocity or phase delay as it transmits through an optical medium on another parameter, such as optical frequency, or wavelength. The refraction of light at the interface is governed by Snells law. He passed a beam of sunlight through a glass prism. He passed a beam of Sunlight through a glass prism . Light coming from Sun does not have a fixed wavelength, it actually is composed of a series of wavelength instead. It was discovered by Isaac Newton in 1666. This Demonstration shows the dispersion of white light through a prism as the incidence angle is varied.When a light ray passes from one medium to another at an angle it refracts (or bends). Description Prism color dispersion, ala Pink Floyd. This phenomenon of splitting up white light into its constituent colors is called dispersion. Move the white dot to change the orientation of the incident ray of white light. White light is a combination of different colors in the visible spectrum and different colors have different indexes of refraction. White light can be dispersed into its constituent frequencies (or equivalently, its wavelength spectrum) by utilizing this diï¬erential velocity of light in materials combined with Snells law. Newton discovered that light is made up of seven different colours. The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours when passed through a transparent medium. These colors are often observed as light passes through a triangular prism. Several different types of dispersion can occur inside an opticâs substrate: chromatic (Figure 1), intermodal, and polarization mode dispersionâ¦ What is the dispersion of light? When a wavelength of visible light hits the inner interface to exit the prism, it is now incident light from a high index to a low index. It was discovered by Isaac Newton in 1666 . As a result, the light is dispersed inside the prism. Isaac Newton found that when a beam of light is passed through a glass prism, the white light breaks into constituent colors, i.e., the colors of the rainbow. Dispersion of light is the phenomenon of splitting of a beam of white light into its 7 constituent colours when passed through a transparent medium like water droplets or Prism . The intensity of the dispersed light can be measured and plotted as a spectrum, which is a valuable Newton discovered that light is made up of seven different colours . Dispersion of light. The infrared light, visible light, and ultraviolet light â¦ For starters, this effect, where light is broken into the visible spectrum of colors, is known as the Dispersion of Light. Dispersion of light on light of a glass prism - White light is made up of a range of different frequencies - We see different frequencies of light as different colours - When light passes through a triangular prism, it refracts at each surface and is deviated through a large angle.