Q. The distance of stars from earth is expressed in terms of
Solution:
The light-year is a unit of length used to express astronomical distances and measures about 9.46 trillion kilometres or 5.88 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days).Because it includes the word “year”, the term light-year is sometimes misinterpreted as a unit of time.
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