2006-08-07 16:28:51 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Speed of light in vacuum is 2.997925 x10 ^8 m/s
Refractive index of air is1.000296.
Speed of light in air is {Speed in vacuum/ Refractive index of air}
{2.997925 /1.000296}* 10 ^8 = 2.997038 *10 ^8 m/s
Speed of light in air is 2.997038 *10 ^8 m/s
Difference is 88700 m/s or 88.7 km/s
2006-08-07 18:27:10 · answer #1 · answered by Pearlsawme 7 · 0⤊ 0⤋
Being speed of light is faster in a absents of matter proves it can push. Being it can push you would just need a vacuum in front for the light to force something away. With this thought in mind you should be able to create a way to increase speed of an object by increasing the the light intensity and creating a larger vacuum.
Just a thought. But I guess my thinking is a little behind the times being it is already being done.
Sorry for getting off topic.
2006-08-07 17:19:34 · answer #2 · answered by Don K 5 · 0⤊ 0⤋
No. The speed of light in a vacuum is as fast as it gets. Passing through any other medium will slow it down. Google the "index of refraction".
2006-08-07 16:32:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋
No it is not. that's on the fringe of a vacuum even nevertheless it is not precisely a similar. one way is to verify refraction. easy bends whilst it hits the ambience so the solar looks greater at sundown and first easy. in case you would be conscious the quantity of bending at a vacuum air interface you may calculate the refractive index of air ( and subsequently its velocity) by utilising snells regulation. For the 2d question c = f lambda so f = c/lambda = 3.0 * 10^8 / (6.0 * 10 ^ -7)= 5.0 * 10 ^ 14 Hz
2016-09-29 00:52:22 · answer #4 · answered by blumenkrantz 4 · 0⤊ 0⤋
almost the same, it differ less than 1%
the speed of light in vacuum is faster
2006-08-07 16:32:35 · answer #5 · answered by arifin ceper 4 · 0⤊ 0⤋
Also agree with Pearlsawme. Put another way, light is only about 0.03% slower in air than in a vacuum.
(Assuming air at room temperature and 1 atmosphere of pressure)
2006-08-08 08:25:26 · answer #6 · answered by genericman1998 5 · 0⤊ 0⤋
No. Light is slower in air than in a vacuum.
2006-08-07 16:53:37 · answer #7 · answered by Chug-a-Lug 7 · 0⤊ 0⤋
the speed of light is always slower in any other medium than a vacuum.
this is due to its absorption, emission, and reflection between the atoms of the medium.
it thus has to travel a greater distance ( due to reflection )and at a slower rate due to the absorption and re-emission.
in between the atoms ( e.g. air ) , there IS a vacuum and the light travels at its constant and ONLY speed it can exist in !
hope it shed new light ( pun intended ) on your intriguing question !
:)
2006-08-07 16:48:20 · answer #8 · answered by fullbony 4 · 0⤊ 0⤋
Light travels more slowly by air.
2006-08-07 16:33:59 · answer #9 · answered by Bob 3 · 0⤊ 0⤋
pearlsawme is correct.Light is faster in vacuum than in air.
2006-08-07 19:19:38 · answer #10 · answered by meno25 2 · 0⤊ 0⤋