Question

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

Answer 1

Answer:

Explanation:

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.

Answer 2

The speed of light per second is 300000km/sec

now the radius of earth is 6400km

so perimeter of earth will be 2*3.14*6400=40192km

Then light travels around the world in one second = 300000 / 40192 = 7.46

which is nearly equal to 7 times

So light ray travels 7 times around the world in one second.