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Part A The yellow light from a helium discharge tube has a wavelength of 587.5 nm. When this light illuminates a certain diffraction grating it

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Part A The yellow light from a helium discharge tube has a wavelength of 587.5 nm. When this light illuminates a certain diffraction grating it produces a first-order principal maximum at an angle of Calculate the number of lines per centimeter on the grating. 1.150 . Express your answer using four significant figures. AEQ CO ? N = lines /cm Submit Request Answer Provide Feedback

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