Universe: Stars And Galaxies
Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 24, Problem 31Q
To determine

The explanation behind the redshift of the absorption line to be less than the redshift of the emission line of quasars.

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The hydrogen Balmer line Hβ has a wavelength of 486.1 nm. It is shifted to 579.8 nm in a quasar's spectrum. What is the redshift of this quasar? (Hint: What is Δλ?)
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The hydrogen Balmee lime Hb has a wavelength of 4.86.1 nm. It is shifted to 55.8 nm in a quasar's spectrum. What is the redshift of the quasar?
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