what is light year
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light year is the distance travelled by light in a year . in vaccum light travels 3lakh km in second
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Answer:Light Year ( ly) : It is the distance travelled by light in vaccum in one year.
1ly = 3×10to the power 8ms to the power-1 × (365 ×24×60×60) s= 9.46×10 to the power 5m
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