Question

Which statement is correct? Light can travel in a vacuum, and it travels faster if the light source is moving. Light can travel in a vacuum, and its speed is constant if the source is moving or stationary. Light can travel in a vacuum and will travel faster if the light source is moving. Light can travel in a vacuum, and it travels more slowly if the light source is stationary

Answer 1

Petroleum used vehicles

Answer 2

Answer:

Why does light travel faster in a vacuum?

Vacuum = no friction = no electromagnetic interference = faster, for both matter AND energy. Light appears "slowed" in matter because the waves bounce off eachother causing interference, which has the net effect of making the light appear to move more slowly.

What is the speed of light while traveling through a vacuum?

299,792 kilometers per second

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