Question

what is lightyear?

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Answer 1

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. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers... This process we call as light year

Answer 2

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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. More precisely, one-light year is equal to 9,500,000,000,000 kilometers. So, this whole process is called the light year.



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