I already know that visible light is only a tiny fraction of the electromagnetic spectrum, and just after that comes UV radiation, since its wavelength is shorter and thus frequency is higher. My question is: if you can ONLY see visible light, then why can you often see UV light as purple? Isn’t it supposed to be invisible? I’m referring to those commercial torches that emit UV (and purple) light.
In: Physics
Ultraviolet is called ultraviolet because it is near violet in wavelength.
We can’t see ultraviolet itself, but light rich in UV is going to be rich in violet/purple light that we *can* see.
Latest Answers