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Physics, 30.11.2020 20:50 babygirl10302015

A light with a second-order dark band forms a diffraction angle of 20.0°. The diffraction grating has 200.0 lines per nm The wavelength of the light, to the nearest whole number, is nm. ,

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A light with a second-order dark band forms a diffraction angle of 20.0°. The diffraction grating ha...
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