Question

Which statements accurately describe the Doppler effect? Select three options.

It is used to learn about the behavior of the universe.
It was used by Hubble to measure velocities of galaxies.
It indicates galaxy motion through light wavelengths.
It indicates a galaxy moving toward Earth through red shift.
It indicates a galaxy moving away from Earth through blue shift.

Answer 1

Answer:

These statements accurately describe the Doppler Effect:

• It indicates galaxy motion through light wavelengths.
• It indicates a galaxy moving toward Earth through red shift.
• It indicates a galaxy moving away from Earth through blue shift.

Explanation:

The reason for selecting these options is because the study of Doppler Effect when it comes to electromagnetic waves such as of light, it is of great significance for the use of astronomy. It shows whether the wavelength is red shift or blue shift and helps in measuring the speed at which the stars and galaxies are whether moving towards the Earth or away from it.

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