Question

What is the mean of one light year​

Answer 1

Answer:

A light-year is a unit of distance. ... 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.

Answer 2

Answer:

▶️the distance travelled by light in vacuum in one year is known as light

one light year =speed of light in vacuum×1 year

$= 3 \times 10power18 \times 365 \times 24 \times 60 \times 60s \\ = 9.46 \times 10power15$

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