Speed of light is 3,00,000km per second and it takes four years to reach on earth from glaxy.please let me know the distance between earth and galaxy.
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Speed of light is 3,00,000km per second and it takes four years to reach on earth from glaxy.please let me know the distance between earth and galaxy.
Come on it's simple multiplication!!
A year is how many seconds ?
Time that by the speed.
Ah, and take each year to be 365.25 days.
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