When light travels through dense matter such as glass or water, then it's speed slows down, but even in the vacuum of space, there is a seething sea of virtual particles, do these virtual particles have any effect on the speed of light?
If what i know is right In vaccum nothing affects the speed of light. Myabe in oter mediums yes but not vaccum. but neither u I or anyone can actually check bcos we have never benn able to achieve 100% vaccum
Its true that speed of light is lower in denser medium. Actually, Vacuum is a condition in which a part of space is totally devoid of any matter let it be solid, liquid or gas. We can't say that outer space is a kind of vacuum. It is surely occupied by these particles which may have effect on its velocity, but to a lesser extent than that our atmosphere has on light. Precisely, the effect on the speed of light is negligible.
Hello: The speed of light is given my Maxwell's equation for the speed of light in a vacuum: The reciprocal of the square root of the product of the permittivity and permeability of free space. That is only true in a vacuum and is 299,792,458 meters per second (approx 186,282.5 miles per second). As light enters the boundary of a media change, such as from a vacuum through a piece of glass, the wavelength and energy change. That does have an effect on the velocity as well. Both speed and direction change slightly. The energy is conserved, however, and the light again returns to normal as it exits the glass back into the vacuum. Cheers!
light always goes the same speed. in the cases your talking about it justs bounces around off of things but the speed is the same. edit: gravity however cant affect light as in black holes if black hole have such a strong gravity pull that not even light can ecape it seems logical that when light passes by one it could be slowed down and its direction changed.
Whoa take it easy. Well I may not be science genius. But hey speed of light. Light-speed? speed of light is the speed of light. Yeah light does travel in speed of light. That is not including all the things around, just that light travels ?? miles/sec. I hope this helped.
