The discussion centers on whether pure water can fluoresce when illuminated by specific frequencies of ultraviolet (UV) light, exploring the conditions under which this might occur and the nature of the emitted radiation.
Participants express differing views on the ability of pure water to fluoresce under UV light, with some supporting the possibility under specific conditions while others challenge the definitions and implications of fluorescence versus other forms of radiation.
There are unresolved questions regarding the definitions of fluorescence and blackbody radiation, as well as the specific conditions under which water may emit radiation when exposed to UV light.
And is 10nm in the UV range ? This question was specifically about incident UV radiationabbas_majidi said:I think it can. If incident UV light has wavelength about 10 nm. The majority of the materials absorbs this wavelength and translate it to heat, then they emit blackbody radiation. But I think blackbody radiation can't be fluorescent radiation .
Yes it is. EM wave with wavelength about 10 nm is called Extreme Ultra Violet.phinds said:And is 10nm in the UV range ? This question was specifically about incident UV radiation
Interesting. I've always thought of that stuff down there as X-rays. They ARE, but you are right that they are also called EUV (I was sure they were not UV). Weird that they have both defintions, but anyway, thanks for pointing that out to me.abbas_majidi said:Yes it is. EM wave with wavelength about 10 nm is called Extreme Ultra Violet.