The hydrogen Balmer line Hβ has a wavelength of 486.1 nanometres in the laboratory. The same line is observed in a quasar at 2430.5 nm. What is the quasar's redshift?

Name: The hydrogen Balmer line Hβ has a wavelength of 486.1 nanometres in the laboratory. The same line is observed in a quasar at 2430.5 nm. What is the quasar's redshift?
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Quizplus · Accepted Answer

The redshift (z) is calculated using the formula z = (observed wavelength - rest wavelength) / rest wavelength. Here, z = (2430.5 nm - 486.1 nm) / 486.1 nm = 4.

The Hydrogen Balmer Line Hβ Has a Wavelength of 486