A diffraction grating produces a first order bright fringe
A diffraction grating produces a first order bright fringe that is 0.156 m away from the central bright fringe on a flat screen which is 0.550 m away. The grating contains 6240 lines/cm. What is the wavelength of the light shining on the grating?
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a diffraction grating produces a first order bright fringe that is 0156 m away from the central bright fringe on a flat
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