Colour - Visible Spectrum, Wavelengths, Hues
Colour - Visible Spectrum, Wavelengths, Hues
Colour - Visible Spectrum, Wavelengths, Hues: Newton demonstrated that colour is a quality of light. To understand colour, therefore, it is necessary to know something about light. As a form of electromagnetic radiation, light has properties in common with both waves and particles. It can be thought of as a stream of minute energy packets radiated at varying frequencies in a wave motion. Any given beam of light has specific values of frequency, wavelength, and energy associated with it. Frequency, which is the number of waves passing a fixed point in space in a unit of time, is commonly expressed in units of hertz (1 Hz.
Color, the aspect of any object that may be described in terms of hue, lightness, and saturation. In physics, color is associated specifically with electromagnetic radiation of a certain range of wavelengths visible to the human eye. Learn more about color in this article.
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