You will find it useful to look at the lab notes (link) for this part. A diffraction grating has a spacing 605 + 5 lines/mm. The spectrum of a mercury lamp is observed through this diffraction grating. Complete the table below. The angular displacement is the angle between the central maximum and the line. Row Number order Angular position (degrees) Angular displacement (degrees) Wavelength (nm) OL OR AA 1 243.6 0.05 306.8 0.05
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