GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The four pieces of evidence for our current theory of the universe are:
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blueshift, Cosmic Background radiation, moon landing, redshift
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redshift, International Background Microwaves, Andromeda galaxy, stars
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red/blueshift, Cosmic Background radiation, Doppler Effect, Age of Stars
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doppler effect, light spectra, fusion, supernova
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Explanation:
Detailed explanation-1: -When an object is moving away from us, the light from the object is known as redshift, and when an object is moving towards us, the light from the object is known as blueshift. Astronomers use redshift and blueshift to deduce how far an object is away from Earth, the concept is key to charting the universe’s expansion.
Detailed explanation-2: -The universe initially had radiation of an infinitely small wavelength, but the expansion has “stretched” the radiation out and we now see microwaves. This is another type of redshift. Thus, the remnant light from the big bang is called the cosmic microwave background radiation (CMB).
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