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Question
Fill in the blank by suitable conversion of unit:
1 m =______ ly
Solution
1 m =1.057 × 10-16 ly
Explanation:
Light year is the total distance travelled by light in one year.
1 ly = Speed of light × One year
= (3 × 108 m/s) × (365 × 24 × 60 × 60 s)
= 9.46 × 1015 m
`:. 1m = 1/(9.46xx10^15) = 1.057 xx 10^(-16) ly`
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