Physics, 09.12.2019 19:31 skypeltier

The redshift of the quasar cygnus a is about 0.046. in the spectrum of this quasar what is the wavelength of the ha line in the hydrogen spectrum (in nanometers)?

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The redshift of the quasar cygnus a is about 0.046. in the spectrum of this quasar what is the wavel...