2007-01-03 03:42:43 · 15 answers · asked by james 2 in Science & Mathematics ➔ Astronomy & Space
Just to clarify:
The speed of light in a vacuum is constant.
2007-01-03 04:17:39 · answer #1 · answered by gebobs 6 · 0⤊ 0⤋
The speed of light in a vacuum is constant for all colors ....HOWEVER once it gets into some physical medium like glass or water or raindrops, the speed of light changes with the color. That's how a prism makes a rainbow.
http://en.wikipedia.org/wiki/Dispersion_%28optics%29
2007-01-03 05:56:06 · answer #2 · answered by Gene 7 · 1⤊ 0⤋
No. The color of light is a function of it's frequency. Not it's speed.
The speed of light is a function of it's frequency multiplied by it's wavelength. An increase in frequency of light (say as its shifting from red to blue) corresponds with a decrease in wavelength to maintain constant speed. Assuming, the medium the light is traveling through is constant.
2007-01-03 05:35:59 · answer #3 · answered by Dr W 7 · 0⤊ 0⤋
Great question.
Einstein said the speed of light is constant.
The rule seems to be holding true in modern science.
Light is made up of many colors called spectra.
Color is just those parts of light's spectra that get reflected from an object.
Stars and galaxies that are moving AWAY from us will appear (in spectrographs) to be more red than objects moving toward us (more blue).
But to the naked eye they haven't changed at all.
2007-01-03 03:57:58 · answer #4 · answered by T K 2 · 0⤊ 1⤋
No, I don't think so.
The color of visible light depends on its wavelength. Red has the longest wavelength and Violet has teh shortest.
The Doppler effect (corelated with the "red shift") can tell us whether an object (especially a celestial body) is approaching or leaving by the apparent change of color (Reddish or bluish).
2007-01-03 04:37:13 · answer #5 · answered by Amiel 4 · 0⤊ 1⤋
No. The speed of light remains constant. It is the amplitude, wavelength and frequency that change to produce different colors, infrared, ultraviolet, radio, X-rays and Gamma rays.
2007-01-03 04:43:56 · answer #6 · answered by Maverick 6 · 0⤊ 0⤋
All that is true for vacuum. Light(differentcolors of light) may travel at different speeds in different media like glass water etc. Just look at the cover of "Dark Side of The Moon"
http://www.amazon.com/gp/product/images/B000002U82/ref=dp_image_0/104-9725316-6986318?ie=UTF8&n=5174&s=music
2007-01-03 05:13:06 · answer #7 · answered by j 3 · 0⤊ 0⤋
no speed of light is always the same in space
2007-01-03 03:44:55 · answer #8 · answered by paul0txyz 2 · 0⤊ 0⤋
The colour of light does not affect the speed of the light . iti salways the massof he paticles or waves of the light that determines the speed of light .light eing made of the sub-atomic particle of protons , it is the light that is the fastest moving stuff in the world .
2007-01-03 06:43:22 · answer #9 · answered by Infinity 7 · 0⤊ 1⤋
No. All electomagnetic radiation travels at the speed of light.
What color indicates is the frequency of that radiation, which may be more or less energetic.
2007-01-03 03:48:55 · answer #10 · answered by Lorenzo Steed 7 · 1⤊ 0⤋