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Infrared radiation, which is electromagnetic radiation with a frequency lower than visible light, is the most common type of radiation that humans emit. Humans aren't the only ones that experience this. Thermal radiation is produced by any item having a temperature greater than zero.
The human body emits a wide range of photons, from infrared to ultraviolet, in terms of reflection. Infrared rays, which may be observed using a thermal camera, are the sole electromagnetic wave that it generates.
All objects emit thermal radiation because a temperature of absolute zero is physically unattainable. We have to be cautious in this case. Infrared radiation and thermal radiation are not the same things.
All electromagnetic waves emitted by an item due to its temperature, including radio waves, infrared waves, and even visible light, are referred to as "thermal radiation." Thermal radiation includes more than just infrared rays. Because the majority of thermal radiation is infrared, which is needed to maintain human-friendly temperatures, the two are frequently confused. The peak of an object's thermal radiation moves to higher frequencies as it grows hotter. Because the sun is so hot, it emits the majority of its thermal radiation in the form of visible light and near-infrared waves.
What are the characteristics of infrared ray? | brainly.ph/question/11086365
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