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the speed of light is 3 x 108 meters per second or m/s.

Light takes 1 secs to travel = 3 x 108 meters

1 year = 365 days = 365 x 24 hours (8760 hours) =8760 x 60 mins ( 525600 mins)

= 525600 x 60 secs (31536000 secs)= 31536000 seconds.

Total distance in meters travelled by light in 1 year = 31536000 x 3 x 108 meters 94608 x 1011 meters95 x 108 Kms

I have done the calculations multiple times based on the fact the the speed of light is 300,000 km/s and have come to the conclution that light travles 9,467,280,000,000 km in one year. This is the distance of a light year

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14y ago

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