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11 Mar 2010 16:39:37 IST

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name an opical device which when used with a spectometer can determine the wavelength of the given m

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name an opical device which when used with a spectometer can determine the wavelength of the given monocromatic light

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edison

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Joined: 19 Oct 2006

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28 Sep 2011 12:16:15 IST

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The optical device is Diffraction grating.

In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. 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.

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