Physics, 08.04.2020 04:42 lesgumball

The ultraviolet Lyman alpha line of hydrogen with wavelength 121.5 nm is emitted by an astronomical object. An observer on Earth measured the wavelength of the light received from the object to be 607.5 nm. The observer can conclude that the object is moving with a radial velocity of

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The ultraviolet Lyman alpha line of hydrogen with wavelength 121.5 nm is emitted by an astronomical...

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