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Problem- You would like to create a reflection grating like the one shown at the right, with an incident angle (Î¸) of 49 °. Calculate the number of lines per centimeter that should be etched in the grating for each of the following conditions:

(a) A first order diffraction angle (Î¦) of -23 ° for visible light of 400 nm wavelength.

(b) A first order diffraction angle (Î¦) of -23 ° for infrared light of 4.00 x 10^-3 cm wavelength.

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Category:- Chemistry
Reference No.:- M91242227

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