Dispersion by a Prism: Dispersion by a prism refers to the phenomenon of light splitting into its component colors as it passes through a prism. When white light enters a prism, it bends or refracts as it passes through the prism due to the difference in the speed of light in air and the prism. The degree of bending or refraction depends on the wavelength of the light, with shorter wavelengths being refracted more than longer wavelengths.
As a result, the white light is separated into its constituent colors, forming a spectrum. The spectrum is a sequence of colors that ranges from red, which has the longest wavelength, to violet, which has the shortest wavelength. The order of colors in the spectrum is often remembered by the acronym ROYGBIV, which stands for red, orange, yellow, green, blue, indigo, and violet.
The dispersion of light by a prism is an important phenomenon in optics and has many practical applications. For example, it is used in spectroscopy to analyze the composition of materials based on their spectral signatures. It is also used in the design of optical instruments such as cameras and telescopes, where the dispersion properties of lenses and prisms must be carefully considered to avoid chromatic aberration.
Dispersion by a prism has a wide range of applications in various fields, some of which are:
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