what is the unit of velocity of light in air?

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what is the unit of velocity of light in air?

2007-04-27 20:09:10 · 3 answers · asked by pradeep v 1 in Science & Mathematics ➔ Physics

3 answers

The same as the unit of velocity for anything else. Meters per secons (m/s). For light that's about
3x10^8 m/s

HTH

Doug

2007-04-27 20:14:02 · answer #1 · answered by doug_donaghue 7 · 0⤊ 0⤋

If you mean normal air as mostly nitrogen and oxygen--i.e. earth's "air", the speed is c or the speed of light. However, some lab experiments have slowed photons of light down to around 40 mph, yes slower than US highway speeds, by having the photons go through chambers filled with certain gaseous elements.

2007-04-28 03:16:02 · answer #2 · answered by quntmphys238 6 · 0⤊ 0⤋

m/s
or km/s

2007-04-28 03:13:24 · answer #3 · answered by dipakrashmi 4 · 0⤊ 0⤋