What are the uses for ultra violet light?

Answer:
  • To test out sun glasses
  • to put on braces
  • To whiten teeth
  • To sterilize water
  • To cure certain glues
  • To reveal secret writing / chemical tests
  • UV-A is used by humans to make vitamin D.


Ultra-violet light bulbs are used in sunbeds. Being under a UV light vulb for a long time can cause loss of sight, they're quite dangerous.
First answer by Breezy9696. Last edit by OzoneGuy. Contributor trust: 275 Question popularity: 3 [recommend question].