A diffraction grating of 1000 groove/mm is used in an experiment with two wavelengths A1 = 445 nm and 12 = 626 nm. Calculate the angular dispersion of the first order for the second wavelength (in rad/cm). 2564.6844 C 76940.5309 102587.3745 C 51293.6873 C 12823.4218
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