Question

do you know how many times a light ray can travel round the world in one second ​

Answer 1

If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.

@Ramanari12❤☺

Answer 2

If you could travel at the speed of light, you could go around the Earth 7.5 times in one second. Early scientists, unable to perceive light's motion, thought it must travel instantaneously. Over time, however, measurements of the motion of these wave-like particles became more and more precise.