Ultraviolet Definition and 57 Threads

Hi... Apologies if this is in the wrong section but it is kind of homework related. I'm looking at an ultraviolet image of the sun... Would I be right in saying that brighter areas represent higher temperatures and darker regions represent lower teperatures?

I was reading the plasmon chapter of my solid state physics book and it says simple metals should reflect light in the visible region and transmit it in the ultraviolet, roughly speaking. (I think I read in a paper that for some metals, like Au and Cu, the threshold wavelength is in the visible...

In reading about the “Ultraviolet Catastrophe” in dealing with black body radiation, my book says that at the ultraviolet frequencies and beyond, the Rayleigh-Jean equation for the energy density of the radiation would be infinite (and thus a catastrophe). If this is the Rayleign-Jeans...

i don't know if this is in the right forum, but anyway...why is it that it's nigh on impossible to focus on the edges of an ultraviolet lamp? is it just me? cos i just see a blur at the edges, and i wondered if there was a reason why. is it to do with uv light being at one end of the visible...

This assignment is based on the structure and properties of atoms and molecules. I have to summarize their findings in a report with the following format: 1st paragraph: a hand sketch with of Ultraviolet spectroscopy components, all components of Ultraviolet spectroscopy, and how it is used...

How did Max Planck tackled the Ultra Violet catastrope? In one of the book I have read, it said that he considered the assumption of equal distribution of energy. Can you please Explain in detail. Thanking you in advance.

Was extinction caused by UV rays from sun? ATLANTA -- The second-largest extinction in the Earth's history, the killing of two-thirds of all species, may have been caused by ultraviolet radiation from the sun after gamma rays destroyed the Earth's ozone layer. Astronomers are proposing...