Introduction to Waves Answers

3 verified answers

Which does the big bang theory describe?

a cool, dark singularity

the origin of the universe

the contraction of the universe

an explosion at the beginning of time

Which statement describes redshifts?

Redshifts occur when the light source and observer move farther apart, and the light observed shifts to a shorter wavelength.

Redshifts occur when the light source and observer move farther apart, and the light observed shifts to a longer wavelength.

Redshifts occur when the light source and observer move closer together, and the light observed shifts to a shorter wavelength.

Redshifts occur when the light source and observer move closer together, and the light observed shifts to a longer wavelength.

Which stars have low temperatures and high luminosities?

red giants

white dwarfs

main sequence stars

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