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Multiple choice physics life cycle of stars movement of the earth properties of stars types of galaxies

The red shift in the spectral lines of light reaching us from other galaxies implies that these galaxies:

  1. are moving closer to one another

  2. are moving farther apart from one another

  3. consist predominantly of red giant stars

  4. are in rapid rotation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The red shift occurs due to increase due to increase in wavelength that would be due to the increasing distance between two galaxies, Red shift indicate that galaxy are mainly farther apart from one another