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What is the condition for absent spectra in a diffraction grating?
Wiki User
∙ 9y ago
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.
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https://msk1986.files.wordpress.com/2010/12/unit-iii-diffraction.pdf
Wiki User
∙ 9y ago
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