What is the relation between a light year and kilomertre
Asked by satenderc | 8th Jun, 2014, 11:00: AM
A light year is the distance covered by light in one year at the speed of 300,000 kilometres per second.
Speed of light = 300000 km/s and 1 year = 365 × 24×60×60 sec
I light year = 300000 × 365×24×60×60 km
= 9460800000000 km
Light-year is most often used when expressing distances to stars and other distances on galactic scale.i.e to express large distances we use the unit known as light year.
Answered by Jyothi Nair | 9th Jun, 2014, 08:56: AM
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