You measure the rest wavelength in the lab) of a spectral line to be 450 nm. You identify that same line in 3 different
Posted: Tue May 17, 2022 9:02 pm
You measure the rest wavelength in the lab) of a spectral line to be 450 nm. You identify that same line in 3 different stars. Which of the following measured wavelengths corresponds to a star that is moving away from us? Select one: O A 464 nm OB. 450 nm OC. 441 nm