Physics, 28.08.2019 05:30 mazolethrin9632

One of the main reference lines on the spectrum of hydrogen is located at 650 nanometers. if the placement of this line on the hydrogen spectrum from a distant star was at 649 nanometers, this would indicate that
the star has no radial motion with respect to earth
the star is moving toward earth
the star is moving away from earth

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One of the main reference lines on the spectrum of hydrogen is located at 650 nanometers. if the pla...

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