Ultraviolet

• What can ultraviolet do to your skin?


  It could give you a suntan or sunburn if Used too often
• how ultraviolet works

  
• Examples of where ultraviolet is used?


  • in sun beds
  • Security pens, invisible until light is shined on them
  • Bank notes
  • Passports
  • sterilises water as it destroys microorganisms
• Where infrared is used

  
• What is fluorescence?


  Ultraviolet light energy being absorbed and remitted as visible light