The spacing between the lines of a diffraction grating is
The spacing between the lines of a diffraction grating is 2000 nm. If red light of wave length 650 nm passes through the grating, what is the angle from the central ray of the first spot away from the central ray?
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the spacing between the lines of a diffraction grating is 2000 nm if red light of wave length 650 nm passes through the
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