A diffractiongrating is an optical device consisting of many closely spaced parallellines or grooves. In a transmission type of grating, lightpasses through the narrow transparent slits that lie between the dark lines on a glassor plastic plate.
Diffraction gratings can be categorized into 2 types - reflection gratings and transmission gratings. So, transmission gratings are a subset of diffraction gratings. Kristian Buchwald, Ibsen Photonics
for diffraction grating mercury lamp is used not sodium lamp.
No diffraction grating is not used in polarization.
an arragement of very large no. of narrow slits of equal width placed side by side and seprated by equal opaque portion is known diffraction grating.when wavefront is incident on grating surface then light is obstructed by opaque portion and is transmitted by slit,such a grating is called plane transmission grating.in general it is constructed by ruling equidistant parallel line by diamond point on glass surface.
In a plane diffraction grating, if the angle of diffraction is such that the minima due to diffraction component in the intensity distribution falls at the same positions of principal maxima due to interference component, then, that order of principal maxima will be missing or absent. For more information, please visit: http://www.theglobaltutors.com/theglobaltutors/Optics-Homework-Help/Spectra-Diffraction-Grating https://msk1986.files.wordpress.com/2010/12/unit-iii-diffraction.pdf
A diffraction grating does not disperse light into its component colors. However, a prism does. A diffraction grating simply causes light to diffract and display an interference pattern on a screen.
Grating is nothing but having many parallel slits or parallel reflectors. If slits are there then light could pass through and so it is named as transmission grating. Otherwise in case of reflection it is termed as reflecting grating. Any way in both the case diffraction phenomenon takes place.
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Grating is nothing but having many parallel slits or parallel reflectors. If slits are there then light could pass through and so it is named as transmission grating. Otherwise in case of reflection it is termed as reflecting grating. Any way in both the case diffraction phenomenon takes place.
Try Edmund Scientific
spectroscope and its roles
measuring wavelengths of light