What is adifferaction grating and greeting elements?
Answers
Answer:
In optics, a diffraction grating is an optical component with a periodic structure that splits and diffracts light into several beams travelling in different directions. The emerging coloration is a form of structural coloration.[1][2] The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element. Because of this, gratings are commonly used in monochromators and spectrometers.
Explanation:
Diffraction grating:
A diffraction grating is an arrangement consisting of a large number of parallel slits of same width and separated by equal opaque spacing. It is obtained by ruling equidistant parallel lines on a glass plate with the help of a fine diamond point.
Grating element:
Let N be the number of parallel slits, each of width 'a' and separated by opaque space 'b'. Then, the distance between the centers of the adjacent slits is d=a+b and is known as grating element.
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