Physics, 06.05.2020 00:07, christyr2002

A laser beam of unknown wavelength passes through adiffraction grating having 5510 lines/cm after striking itperpendicularly. Taking measurements, you find that the first pairof bright spots away from the central maximum occurs at±15.4° with respect to the original beam direction. (a) What is the wavelength of thelight? (b) at what angle will the next pair ofbright spots occur?

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A laser beam of unknown wavelength passes through adiffraction grating having 5510 lines/cm after st...