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Question 174 A particular star is at a distance of about 8.1×1013 km from the Earth. Assuring that light travels at 3×108 m per second, find how long does light takes from that star to reach the Earth?

Answer»

Question 174

A particular star is at a distance of about 8.1×1013 km from the Earth.
Assuring that light travels at 3×108 m per second, find how long does light takes from that star to reach the Earth?



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