Question

suppose you are in an empty room which contains only UV light. Will you be able to see the walls?

Answer 1

Human eyes can detect light at wavelengths in the visual spectrum; other wavelengths, such as infrared and ultraviolet, are supposed to be invisible, but an international group of scientists from Poland, Switzerland, Norway and the United States, has found that under certain conditions, it's possible for humans to see ..

we doesn't see anything in the room