Does electrical light (lightning etc) travel at the same speed as light from the sun? If not, what does it travel at?
2007-01-08 10:44:55 · 7 answers · asked by 1K 6 in Science & Mathematics ➔ Physics
the speed of light is constant whatever the source. the light you see from the lightning discharge is moving at the speed of light, which is why you always see the flash of a lightning bolt before you hear the thunder which is traveling at the speed of sound which is much slower than light. the lightrays coming from the Sun travel at the same rate as from any other source. they just take much longer to reach here because of the great distance involved. you see a constant source of sunlight because it is continually being produce by the Sun.
2007-01-08 11:01:04 · answer #1 · answered by Anonymous · 1⤊ 0⤋
the speed of light consists of anything that gives off light. (EG. A lightbalb, the sun, ect.) I'm pretty sure lighting doesn't go as fast as light because it more electricity then light.. Electricity is roughly 1/3 the speed of light.
299,792.458 km/s is the speed of light in vacuum. However, according to Einstein's theory of General Relativity, the speed of light appears to vary with the intensity of the gravitational field.
and the person above say, you see lightning bolt before you hear thunder, yes that's right because thunder is sound that is made after light strikes.
Hope this helps.
2007-01-08 11:09:14 · answer #2 · answered by Rain-- 3 · 1⤊ 0⤋
Yes it does. Electric power is the same as light, in essence, light comes from electric power, whether it be lightning or a light bulb.
Another source of light is radiation, but it still travels at the same pace.
2007-01-08 10:53:28 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Yes, it does. ALL light travels at the same speed, regardless of source or destination. This includes even diffrent colors of light, plus other electromagnetic radiation like radio waves, micro waves and x-rays and gamma rays etc. They all travel at the same speed.
2007-01-08 10:53:11 · answer #4 · answered by kingdom_of_gold 4 · 1⤊ 0⤋
The speed of light is a constant, no matter the source.
2007-01-08 10:52:38 · answer #5 · answered by Anonymous · 1⤊ 0⤋
The speed of light in vacuum is 3x10^8 m/s
2007-01-09 01:48:36 · answer #6 · answered by Anonymous · 1⤊ 0⤋
all light travels at appr. 3.0 x 10^8 m/s in a vacuum.
2007-01-08 10:58:38 · answer #7 · answered by SteveA8 6 · 1⤊ 0⤋