Wave theory is a scientific explanation that suggests light travels in the form of waves, which can be described by properties such as wavelength and frequency. It explains how white light can be separated into different colors when passed through a prism.
Related terms
Prism: A transparent object with flat surfaces that can separate white light into its component colors.
Wavelength: The distance between two corresponding points on adjacent waves of light.
Frequency: The number of complete waves passing a point in a given time.