An astronomer who is studying the light from a galaxy has identified the spectrum of hydrogen but finds that the wavelen

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An Astronomer Who Is Studying The Light From A Galaxy Has Identified The Spectrum Of Hydrogen But Finds That The Wavelen 1 (66.83 KiB) Viewed 32 times

An astronomer who is studying the light from a galaxy has identified the spectrum of hydrogen but finds that the wavelengths are somewhat shifted from those found in the laboratory. In the lab, the H, line in the hydrogen spectrum has a wavelength of 656.3 nm. The astronomer is using a transmission diffraction grating having 5708 lines/cm in the first order and finds that the first bright fringe for the Holine occurs at 23.11° from the central spot. How fast is the galaxy moving? Express your answer in m/s and as a percentage of the speed of light. Is the galaxy moving toward us or away from us? Find the wavelength of the H spectral line in the received light. Express your answer with the appropriate units. ► View Available Hint(s) 74 μA ? AR= Value Units Submit Part D Rewrite the equation of Doppler effect as a formula for the velocity of the galaxy terms of the received wavelength and the wavelength emitted by the source. Express your answer in terms of the emitted wavelength Ag, the velocity of the source, and the speed flight c. ▸ View Available Hint(s) Π ΑΣΦ ? AR= Submit