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Approx. wavelength of light

English translation: different for different colors

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English term or phrase:Approx. wavelength of light
English translation:different for different colors
Entered by: Fuad Yahya
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00:35 Sep 8, 2001
English to English translations [PRO]
Science
English term or phrase: Approx. wavelength of light
What is the approximate wave length of light.
A couple of reference sites would be welcome

TIA
Poornima
Poornima Iyengar
Local time: 05:38
different for different colors
Explanation:
Take a look at the following:

http://acept.la.asu.edu/PiN/rdg/color/color.shtml

“When we consider light as an electromagnetic wave, a color's spectral signature may be identified by noting its wavelength. We sense the waves as color, violet being the shortest wavelength and red the longest. Visible light is the range of wavelengths within the electromagnetic spectrum that the eye responds to. Although radiation of longer or shorter wavelengths are present, the human eye is not capable of responding to it.

... Violet light is electromagnetic radiation with wavelengths of 410 nanometers and red light has a wavelength of 680 nanometers.

The nanometer is a unit of distance in the metric scale and is abbreviated as nm. One nanometer (nm) equals one thousand millionths of a meter (m) or 1 nm = 10-9 m. One nanometer is a distance too small to be resolved in an optical microscope but one micron (µm) or one thousand nanometers can be resolved (1 micron = 1000 nm). The wavelengths of visible light are smaller than common objects such as the thickness of a sheet of paper or the diameter of a human hair. Both of these are about one hundred microns thick which translates to distances greater than one hundred wavelengths of visible light.

As we move through the visible spectrum of violet, blue, green, yellow, orange and red, the wavelengths become longer. The range of wavelengths (400 - 700 nm) of visible light is centrally located in the electromagnetic spectrum (Fig. 1). Infrared and radio waves are at the long wavelength side while ultraviolet (UV), x-rays and gamma rays lie at the short wavelength side of the electromagnetic spectrum. Radiation with wavelengths shorter than 400 nm cannot be sensed by the eye. Light with wavelength longer than 700 nanometers is also invisible.”

Here is another link that may be useful:

http://webug.physics.uiuc.edu/courses/phys114/spring98/Lectu...

Fuad
Selected response from:

Fuad Yahya
Grading comment
Thanks again Fuad!
4 KudoZ points were awarded for this answer

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Summary of answers provided
5different for different colorsFuad Yahya


  

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26 mins   confidence: Answerer confidence 5/5
different for different colors


Explanation:
Take a look at the following:

http://acept.la.asu.edu/PiN/rdg/color/color.shtml

“When we consider light as an electromagnetic wave, a color's spectral signature may be identified by noting its wavelength. We sense the waves as color, violet being the shortest wavelength and red the longest. Visible light is the range of wavelengths within the electromagnetic spectrum that the eye responds to. Although radiation of longer or shorter wavelengths are present, the human eye is not capable of responding to it.

... Violet light is electromagnetic radiation with wavelengths of 410 nanometers and red light has a wavelength of 680 nanometers.

The nanometer is a unit of distance in the metric scale and is abbreviated as nm. One nanometer (nm) equals one thousand millionths of a meter (m) or 1 nm = 10-9 m. One nanometer is a distance too small to be resolved in an optical microscope but one micron (µm) or one thousand nanometers can be resolved (1 micron = 1000 nm). The wavelengths of visible light are smaller than common objects such as the thickness of a sheet of paper or the diameter of a human hair. Both of these are about one hundred microns thick which translates to distances greater than one hundred wavelengths of visible light.

As we move through the visible spectrum of violet, blue, green, yellow, orange and red, the wavelengths become longer. The range of wavelengths (400 - 700 nm) of visible light is centrally located in the electromagnetic spectrum (Fig. 1). Infrared and radio waves are at the long wavelength side while ultraviolet (UV), x-rays and gamma rays lie at the short wavelength side of the electromagnetic spectrum. Radiation with wavelengths shorter than 400 nm cannot be sensed by the eye. Light with wavelength longer than 700 nanometers is also invisible.”

Here is another link that may be useful:

http://webug.physics.uiuc.edu/courses/phys114/spring98/Lectu...

Fuad


    Reference: http://acept.la.asu.edu/PiN/rdg/color/color.shtml
    Reference: http://webug.physics.uiuc.edu/courses/phys114/spring98/Lectu...
Fuad Yahya
Native speaker of: Native in ArabicArabic, Native in EnglishEnglish
PRO pts in pair: 893
Grading comment
Thanks again Fuad!
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