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Good question-- See the link. Roughly the visible region is 300 nm to 650. so that's 350 nm total. The electromagnetic spectrum goes from 10 Megameters to 1 picometer. So the percentage of the spectrum occupied by visible light is tiny, just 3.5 X 10-9 divided by 10^19 ---- So that's 3.5x10-26 %. So many zeros....! Yikes. Gamma rays (picometers) (10-12)

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Very high frequency (Radio)

High frequency (Radio)

Medium frequency (Radio)

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Voice frequency (Radio)

Extremely low frequency (Radio) 10 Megameters (10 X 106) Actually the electromagnetic spectrum goes off as far as you want in both directions - there are electromagnetic waves with wavelengths as small as you want, and others as large as you want. So really the answer is 0%. If you meant to ask what percentage of the electromagnetic energy from the sun is visible (for instance) then the answer is nonzero, but I don't know what it is. If you meant to ask a question of the kind that has been answered above (what percentage of the spectrum from 10 megameters to 1 picometer is visible) then the question is not well defined: the answer depends not just on the bounds but on what scale you use. I think the answer above is mistaken. If you go by wavelength, my answer (to that question) would be: 3.5x10-7 divided by 107, which is 3.5x10-14 or 3.5x10-12%. If you use frequency instead of wavelength: The bounds on wavelength given above correspond to 30 Hz to 3x1020Hz, with visible light between 4.6x1014Hz and 1015Hz. Then, the answer would be 5.4x1014 divided by 3x1020, which is 1.8x10-6, or 0.00018%. If you want to use a logarithmic scale, which is more sensible in some ways, then the answer is much higher. I don't know exactly because I don't have a calculator with logarithms here, but it's around 1.5%.

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โˆ™ 2009-07-28 14:42:22
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Q: What percentage of the electromagnetic spectrum is visible light?
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Related questions

What do electromagnetic spectrum and visible light have in common?

Visible light is in the electromagnetic spectrum.


What is between visible light and the electromagnetic spectrum?

Visible light is a small section in the electromagnetic spectrum.


Is visible light electromagnetic?

Yes. visible light is in the electromagnetic spectrum.


What is the relationship between visible light and electromagnetic spectrum?

Visible light is a small section in the electromagnetic spectrum.


What wave is the visible part of the electromagnetic spectrum?

It is visible light that is part of the visible electromagnetic (EM) spectrum.


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less than 1/1,000,000 of a percent


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Light is electromagnetic energy that is visible to the eye and it is part of the electromagnetic spectrum.


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Visible light is part of what kind of spectrum?

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Most of the electromagnetic spectrum is not visible.


What type of electromagnetic waves are visible?

The visible part of the electromagnetic spectrum is called "light" or "visible light".The visible part of the electromagnetic spectrum is called "light" or "visible light".The visible part of the electromagnetic spectrum is called "light" or "visible light".The visible part of the electromagnetic spectrum is called "light" or "visible light".


The electromagnetic spectrum does not contain what?

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