7. A diffraction grating has a grating constant of 500 lines/mm. Light consisting of two discretewavelengths (450 nm and 630 nm) is incident upon the grating and then a screen to view themaxima.a) What is the angular separation of the 1st order maxima considering the two wavelengths oflight?b) At what distance away from the grating should the screen be placed such that the linearseparation of the 1st order maxima is 3.00 cm?

Part (a) Given: The number of lines in grating is N=500 lines/mm. The wavelength of first light is…

Answered: 7. A diffraction grating has a grating…

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