Question:
Do all lights emit infrared?
xEnOn
2007-10-22 08:56:41 UTC
Do all our usual lamps emit infrared too? If all lights emit infrared, why and how do they emit infrared?
Six answers:
kain2396
2007-10-22 09:02:09 UTC
Actually, *Everything* emits infrared, but for the most part far to o little energy to notice, this is due to thermal radiation which (since all objects have a temperature) all objects do.



The mechanism that lightbulbs emit light by is different, though. It comes from exciting electrons in the gas and then the subsequent emission of that light. This is not thermally related. The light bulb is hot, however, so you will see some infrared energy emitted from it, but compared to the visible portion, is probably negligible.
2007-10-22 09:15:23 UTC
Answers so far dont mention laser light which is can be of a unique wavelength(including that they could range through the infra red to the gamma)and being of unique wave lengths they need not carry infra red.The ordinary filament lamp still the most common method of lighting emits only a small percentage of it's radiation as useful light,the rest is infrared.
g00gle
2007-10-22 09:03:45 UTC
Most objects that emit heat (such as lightbulbs) vibrate in such a way that they radiate in the infrared frequency. This is also why infrared is sometimes used to detect heat.
?
2016-12-18 19:25:11 UTC
let's imagine a technique or the different that we violate all the guidelines of physics. Now we could additionally say your life relies upon on you answering the subsequent question actually properly. what is going to happen to the Moon? in case you experience it is the two a stupid, stupid, or unfair question then you certainly are maximum suitable. as quickly as you (in case you) get carry of greater useful thinking skills you will comprehend why the basis of a question can no longer contradict aspects of required to be authentic to respond to the question. The properties of neutrinos avert us from containing a mass of them. there is great debate presently in spite of if or no longer they have mass or no longer. in the event that they do no longer, then we could no longer warmth them up. it relatively is understood that they do, even though. because of the fact they oscillate, they could have non-0 relax mass or our information of the guidelines of Physics is inaccurate (yet there is an significant threat that that's certainly the case). "Neutrinos do no longer carry electric value, this skill that they are no longer tormented via the electromagnetic forces that act on charged debris which contain electrons and protons. " hyperlink below. -=- they gained't emit emr nor soak up it below situations of temperature and stress that succeed in and close to Earth. -=-=- for the period of the 1st instants of the massive bang (and perchance someplace else interior the Universe) the three forces of nature (good, vulnerable, and Electromagnetic) have been a single stress. (we don't comprehend the place gravity suits in, so I forget approximately approximately it right here.) So, the stress companies, that are referred to as "value" companies, have been an identical. at that factor, you ought to declare, that neutrinos (in the event that they existed) did work together (absorption and emission) with the cost companies. i do no longer understand in the event that they existed then, yet whilst they did calling them neutrinos is grossly deceptive at maximum suitable and not sensible - their properties could be very diverse from what we comprehend of neutrinos.
ed s
2007-10-23 17:35:00 UTC
No



Many lights such as incandescent bulbs do, but others types (like white or blue LED's) don't
fishdude
2007-10-22 09:06:31 UTC
yea


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