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 12 light years away, how long will it take for it’s light to reach Earth?
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12 days
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1 year
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12 years
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100 years
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Explanation:
Detailed explanation-1: -As 1 light year is the distance covered by light in one year. So, if the star which is 10 light years away from the earth glows today, then it will be seen after 10 years.
Detailed explanation-2: -Meanwhile, someone on Earth would say it took you about 1.4 years to traverse that distance.
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