The average speed of light is greatest in?

Answer 1

The velocity of light travelling through a material relates to the index of refraction of that material. In this group, air has the lowest index of refraction, follow by water, fused quartz, and crown glass. This means like travels the fastest through air, then water, then fused quarts, and finally glass.

Answer 2

Light does not refract via a single material. Refraction occurs when light passes from one material into another of a different density. It is the amount of difference in densities that causes the refraction. The greater the difference the greater the refraction.

I believe that the densest material would be diamond, so light passing through a diamond and into a vacuum would seem to be the greatest difference, causing the greatest refraction.

Answer 3

Light travels at its "maximum velocity" in a vacuum. In any other medium, interference makes it appear to slow down. We're giving Čerenkov radiation the day off here.

Answer 4

A vacuum. Light slows down depending on the density of material it is travelling through. It is slowest in diamond due to the close packing of the carbon atoms.

Answer 5

In vacuum. In other words, where the speed is extreme, there is no medium.

Answer 6

Glass is the material that refracts dark red light the most. A refract is the change of direction when the material is exposed to light.

Answer 7

Light travels most quickly through empty space.

Answer 8

The speed of light is greatest in a vacuum. There's no averaging necessary, because it's constant.

Answer 9

In a vacuum.

Answer 10

In a vacuum.