if light takes 100 years to reach from star to planet then what is the distance between the star and planet
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A light is the distance that light travels in vacuum in one year. If a star is at a distance of 100 light years then it would take light, 100 years to reach earth.
Therefore, after 100 years the explosion will be visible to people on earth.
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100 light years
Explanation:
1 light year is equal to the time taken by the light to travel from one point to another in one year
Samje
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