When yellow sodium light, ? = 589 nm, falls on a
Chapter 27, Problem 72GP(choose chapter or problem)
When yellow sodium light, \(\lambda=589 \mathrm{~nm}\), falls on a diffraction grating, its first-order peak on a screen \(60.0 \mathrm{~cm}\) away falls \(3.32 \mathrm{~cm}\) from the central peak. Another source produces a line \(3.71 \mathrm{~cm}\) from the central peak. What is the wavelength of the new source? How many lines/ \(\mathrm{cm}\) are on the grating?
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