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ThousandFjord
- 3
- 0
If UV-A radation can cause sunburns, could this also be said of visible violet light of the highest frequencies (at least theoretically)? I can't imagine the "cut-off" point between harmful EMR vs non-harmful EMR falls right on the border between visible violet light and UV radiation, which means either the least energetic UV rays are not harmful or the most energetic visible violet rays are. Which is it?