10 Terahertz to 100 Terahertz (10,000,000,000,000 to 100,000,000,000,000 hertz)
Wiki User
∙ 16y agoWiki User
∙ 14y ago10^14 to 10^12 around
Greenhouse gasses are called that because they are opaque to low frequency infra-red, but transparent to high frequency infra-red. Thus the sun's heat, which is high frequency infra-red, can penetrate to the earth's surface, which warms up and emits low frequency infra-red, which is trapped in the atmosphere. This makes the atmosphere act like a greenhouse by trapping heat. There are a number of such gasses, such as metahane and carbon-dioxide. This is a highly controversial subject since the leading "sceintist" studying the matter was caught fabricating data.
First of all it is important to note that heat and infra-red rays are NOT the same thing. When an object gets really hot it starts to glow, emitting red light at first, (hence the phrase: 'red hot') because red is the least frequency. Hotter objects emit light of higher frequency. A light bulb and the Sun are both examples of this. But infra-red rays are even lower in frequency than red light. Infra-red rays are emitted in the same way by objects at room temperature. That means you, your computer and everything around you are 'glowing' with this infra-red radiation. Infra-red rays carry energy between objects at the speed of light. This process causes relatively hot objects to cool down faster.
Electromagnetic radiation in the infra red, visible, and ultra violet frequency ranges
Of the colors of visible light, that would be red. Note that there are electromagnetic waves with an even lower frequency - for example, infrared - but those are not visible to human eyes.
Anything that has a temperature emits IR radiation. Hotter things emit more at a higher frequency. Then they become Red.
Either via Infra-Red or Radio Frequency key fob programmed with a receiver in your vehicle.
Infrared radiation has a longer wavelength than red light.
"UV" (ultra-violet) is radiation with shorter wavelength/higher frequency than visible. Infrared is radiation with longer wavelength/lower frequency than visible.
Infra-Red - song - was created on 2006-06-19.
vibrating molecules relase infra-red radiation (that's hot things)
anything warm rleases infra red waves the hotter an object is the more it releases. an inrer red camra detect infra and makes an image out of it.
Infrared light has a frequency range of about 300 GHz to 400 THz. The frequency of infrared radiation falls between microwaves and visible light in the electromagnetic spectrum.