2007-05-23 14:07:25 · 4 answers · asked by Peter 1 in Science & Mathematics ➔ Physics
air
Faster to slower: air, water, crown glass, fused quartz (see the list of refractive indices)
2007-05-23 14:10:20 · answer #1 · answered by Orinoco 7 · 2⤊ 0⤋
Air for sure.
The speed of light is fastest in a vacuum. In all other materials the presence of matter interacts with the EM waves and effectively impedes (slows and absorbs) the light to different degrees, depending on the material and the light's frequency.
The amoung light bends on entering or leaving a material depends on the speed of light in the material.
2007-05-23 14:28:58 · answer #2 · answered by Richard of Fort Bend 5 · 0⤊ 0⤋
Air
2007-05-27 10:39:20 · answer #3 · answered by johnandeileen2000 7 · 0⤊ 0⤋
in air.
even greater is in vacuum.
2007-05-23 14:22:32 · answer #4 · answered by Hanciong 3 · 1⤊ 0⤋