Infra Rays: Sun or Human Body Wavelength?

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Infrared rays have a fixed range of wavelengths, regardless of their source, which includes both the sun and the human body. The classification of waves is based on wavelength or frequency, with infrared rays falling within a specific range. The sun produces more high-energy infrared rays compared to the human body, which correlates with shorter wavelengths. The discussion highlights a common misunderstanding regarding the term "infra" in relation to wavelength. Ultimately, the sun emits a greater intensity of infrared radiation than the human body.
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which one's infra rays wavelength are longer, sun or human body?
 
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What do you mean by "infra" rays?? The only "infra" I know applied to wavelength is infrared radiation which has a fixed range of wavelengths no matter where it comes from.
 
infra-red rays

Waves are basically classified on the basis of wavelength ( or frequency ). Infra-red rays is the name for the rays having a particular range for wavelengths. So, it doesn't matter what the source of the rays is. If the wavelength falls in the range, they are called infrared rays.


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This sounds like one of those "flawed" questions that come from a lower-level (elementary or junior high) textbooks. I'm guessing that what the question is getting at is:
"which produces more high-energy infrared rays, the sun or a human body." I'm sure you could guess which one.

THen, what you need to know is that "high energy" infrared is "shorter wavelength" infra red. Take it from there.
 

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