GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a star is being observed from Earth and it’s light has shifted towards the red side of the electromagnetic spectrum it would be ____
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Moving towards the Earth
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Moving away from the Earth
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This is a trick question that cannot be answered
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It isn’t a star, it is a very large blueberry.
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Explanation:
Detailed explanation-1: -Because shorter wavelengths correspond to a shift towards the blue end of the spectrum, this is called blueshift. In contrast, the light from a star moving away from us seems to shift towards longer wavelengths. As this is towards the red end of the spectrum, astronomers call it redshift.
Detailed explanation-2: -Astronomers can measure this wobble by using spectroscopy. If a star is traveling towards us, its light will appear blueshifted, and if it is traveling away the light will be redshifted. This shift in color will not change the apparent color of the star enough to be seen with the naked eye.
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