Question

Velocity of light in a vacuum or air is approximately

Answer 1

Answer:

Velocity of light in air or vaccum is

3×10^8 m/s

Answer 2

please mark it as a brainlist..

The speed of light is faster in a vacuum (like space), since the photons aren't slowed down by many particles. When traveling through denser mediums like air, the speed of light is slower. ... For air, the refractive index is with regard to light, so the speed of light in air is: That's about km/s slower