Solved: In a laboratory, light from a particular spectrum
Chapter 36, Problem 36.56(choose chapter or problem)
In a laboratory, light from a particular spectrum line of helium passes through a diffraction grating and the second-order maximum is at \(18.9^{\circ}\) from the center of the central bright fringe. The same grating is then used for light from a distant galaxy that is moving away from the earth with a speed of \(2.65 \times 10^7\mathrm{\ m}/\mathrm{s}\). For the light from the galaxy, what is the angular location of the second-order maximum for the same spectral line as was observed in the lab? (See Section 16.8.)
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