which statement accurately describes how the ...
which statement accurately describes how the understanding of the doppler effect is applied to the study of galaxies? it was used by hubble to measure the velocities of galaxies. it was used to monitor galaxy motion through changes in sound waves. it indicates a galaxy moving toward earth through red shift. it indicates a galaxy moving away from earth through blue shift.
Answer
# Brief Explanations:
The Doppler - effect is related to the change in wavelength of light due to the motion of the source (galaxies). Hubble used it to measure galaxy velocities. Galaxies moving away show red - shift and those moving towards show blue - shift. Also, in space, we deal with light waves, not sound waves as sound needs a medium to travel.
# Answer:
It was used by Hubble to measure the velocities of galaxies.