Answered: When yellow sodium light, λ = 589 nm,… | bartleby

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When yellow sodium light, λ = 589 nm, falls on a
diffraction grating, its first-order peak on a screen
72.0 cm away falls 3.32 cm from the central peak.
Another source produces a line 3.71 cm from the
central peak. What is its wavelength? How many
slits/cm are on the grating?

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