GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A special unit called a light-year is used to describe the relationship between objects in space. How long is a light-year?
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365 days
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950, 000 Km
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9.5 trillion days
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9.5 trillion Km
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Explanation:
Detailed explanation-1: -Light-year is the distance light travels in one year. Light zips through interstellar space at 186, 000 miles (300, 000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year.
Detailed explanation-2: -A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300, 000 kilometers (km) each second. So in one year, it can travel about 10 trillion km.
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