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is it closer to ultraviolet or infrared?

2007-09-27 17:12:39 · 9 answers · asked by Scarlet 1 in Science & Mathematics Physics

9 answers

white light is composed of all the colours in the visible spectrum..

In other words. all colours together are white light..

2007-09-27 17:22:40 · answer #1 · answered by Anonymous · 1 0

White light is how our eyes see the entire visible spectrum when it's all there at once. You can also fake it with just red, green and blue mixed, because of how our eyes work. So it's equally close to ultraviolet and infrared, as those two bracket it.

2007-09-28 00:18:24 · answer #2 · answered by Dvandom 6 · 0 0

There is no white light in the spectrum, it is a perceptual construct. There are many types of white light, all related to the human perception of distributions of electromagnetic radiation with wavelengths between 400 nm and 700 nm. Natural white light has the same spectral distribution as sunlight (approximately 5000 K black body radiation). The spectral distribution of 'white light' from fluorescent tubes, LED's or incandescent bulbs is different from natural sunlight, but these light sources are engineered to be perceived similarly to natural white light by humans.

2007-09-29 02:04:07 · answer #3 · answered by d/dx+d/dy+d/dz 6 · 0 0

White light is not on spectrum because when white light breaks up into different colors of different wavelengths, the spectrum is formed.

2007-09-28 00:51:07 · answer #4 · answered by BL 1 · 0 0

As a matter of fact there is no such "single" elctromagnetic wave as "white" light..!!!! White light is a proper mixture of
VIBGYOR (waves in visible spectrum)...thats why it doesn't have a position in the visible spectrum as such...its a COMBINATION!!!!

When u Pass white light through a PRISM in a proper way U'LL OBSERVE VIBGYOR lights at the other side thus proving that white light is composed of all these wavelengths!!!!!

2007-09-28 00:40:51 · answer #5 · answered by Swapnil B 2 · 0 0

White light is just what our eyes perceive when all of the frequencies of visible light (between infra-red and ultra-violet, exclusive) are present.

If you heat something up, it will first glow invisibly in infra-red, then red, orange, yellow and then white. When it gets to the hotter end and starts emitting green and then blue light, we don't see those colors individually because of the red that is already present, so we see them altogether as white.

2007-09-28 00:26:25 · answer #6 · answered by Anonymous · 0 0

'White light' *is* the visible spectrum.

2007-09-28 01:18:41 · answer #7 · answered by Chug-a-Lug 7 · 0 0

Hi. Directly in the middle.

2007-09-28 00:15:26 · answer #8 · answered by Cirric 7 · 0 4

Extremely Low Frequency (ELF) 0 to 3 KHz
Very Low Frequency (VLF) 3 KHz to 30 KHz
Radio Navigation &
maritime/aeronautical mobile 9 KHz to 540 KHz
Low Frequency (LF) 30 KHz to 300 KHz
Medium Frequency (MF) 300 KHz to 3000 KHz
AM Radio Broadcast 540 KHz to 1630 KHz
Travellers Information Service 1610 KHz
High Frequency (HF) 3 MHz to 30 MHz
Shortwave Broadcast Radio 5.95 MHz to 26.1 MHz
Very High Frequency (VHF) 30 MHz to 300 MHz
Low Band: TV Band 1 - Channels 2-6 54 MHz to 88 MHz
Mid Band: FM Radio Broadcast 88 MHz to 174 MHz
High Band: TV Band 2 - Channels 7-13 174 MHz to 216 MHz
Super Band (mobile/fixed radio & TV) 216 MHz to 600 MHz
Ultra-High Frequency (UHF) 300 MHz to 3000 MHz
Channels 14-70 470 MHz to 806 MHz
L-band: 500 MHz to 1500 MHz
Personal Communications Services (PCS) 1850 MHz to 1990 MHz
Unlicensed PCS Devices 1910 MHz to 1930 MHz
Superhigh Frequencies (SHF)
(Microwave) 3 GHz to 30.0 GHz
C-band 3600 MHz to 7025 MHz
X-band: 7.25 GHz to 8.4 GHz
Ku-band 10.7 GHz to 14.5 GHz
Ka-band 17.3 GHz to 31.0 GHz
Extremely High Frequencies (EHF)
(Millimeter Wave Signals) 30.0 GHz to 300 GHz
Additional Fixed Satellite 38.6 GHz to 275 GHz
Infrared Radiation 300 GHz to 430 THz
Visible Light 430 THz to 750 THz
Ultraviolet Radiation 1.62 PHz to 30 PHz
X-Rays 30 PHz to 30 EHz
Gamma Rays 30 EHz to 3000 EHz

2007-09-28 00:16:35 · answer #9 · answered by Anonymous · 0 4

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