1.

What is the speed of light in air​

Answer»

The SPEED of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory NOTHING can travel faster than light. In miles per HOUR, light speed is, well, a LOT: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.



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