If the distance between slits on a diffraction grating is 0.50 mm and one of the angles of diffraction is 0.25°, how large is the path difference? nm How many orders of bright lines does this equal for

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asked Oct 21, 2021 89.6k views

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If the distance between slits on a diffraction grating is 0.50 mm and one of the angles of diffraction is 0.25°, how large is the path difference?

nm

How many orders of bright lines does this equal for red light with a wavelength of 650 nm?

wavelengths