The distance between the earth and another star is 13 light year .What time will the light from the star takes to reach earth if speed of light is 3×10^8m/s
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Light travels at 300,000 kilometers per second or 186,000 miles per second. The time it takes for light from stars to reach us is the distance to the star divided by this speed. The nearest star to us is the Sun and it takes about 8.3 minutes for its light to reach us here on Earth.
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