Physics · Doppler Effect and Cosmology
How does the Doppler Effect enable the study of the expansion of the universe?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By measuring heat changes in pulsars using microwave radiation.
- 2By calculating the mass of the sun through reflected radio waves.
- 3By detecting a redshift in light from distant galaxies, indicating they are moving away.✓
- 4By measuring light interference in nearby stars.
Correct answer
By detecting a redshift in light from distant galaxies, indicating they are moving away.
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