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 5608 lines/cm in the first order and finds that the first bright fringe for the H, line occurs at + 23.41" 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? • Part C Find the wavelength of the Ha spectral line in the received light. Express your answer with the appropriate units. • View Available Hint(s) ? Value Units Submit • Part D Rewrite the equation of Doppler effect as a formula for the velocity v of the galaxy in terms of the received wavelength and the wavelength emitted by the source. Express your answer in terms of the emitted wavelength As, the velocity of the source v, and the speed of light c. > View Available Hint(s) ΑΣΦ ?
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 5608 lines/cm in the first order and finds that the first bright fringe for the H, line occurs at + 23.41" 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? • Part C Find the wavelength of the Ha spectral line in the received light. Express your answer with the appropriate units. • View Available Hint(s) ? Value Units Submit • Part D Rewrite the equation of Doppler effect as a formula for the velocity v of the galaxy in terms of the received wavelength and the wavelength emitted by the source. Express your answer in terms of the emitted wavelength As, the velocity of the source v, and the speed of light c. > View Available Hint(s) ΑΣΦ ?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:I Review I Constants
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 5608 lines/cm in the first order and finds that the
first bright fringe for the H, line occurs at + 23.41" from the
central spot. How fast is the galaxy moving? Express your answer
In m/a and as a percentage of the speed of light. Is the galaxy
• Part C
Find the wavelength of the Ha spectral line in the received light.
Express your answer with the appropriate units.
• View Available Hint(s)
moving toward us or away from us?
AR = Value
Units
Submit
Part D
Rewrite the equation of Doppler effect as a formula for the velocity v of the galaxy in terms of the received wavelength and the wavelength emitted by the
Source.
Express your answer in terms of the emitted wavelength As, the velocity of the source v, and the speed of light c.
> View Available Hint(s)
AR =
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