Elecromagnetic Spectrum

Elecromagnetic Spectrum

1. Gamma Rays

   • Emitted from the neucli of radioactive atoms
   • Short wavelength
   • Most penetrating

2. X-Rays

   • High speed electrons hit a tungsten target

3. Ultraviolet

   • Emitted by very hot objects
   • Needed for production of vitamin D

4. Visible light

   • Forms a very small part of the electromagnetic spectrum

5. Infrared

   • Emitted by all objects
   • Hotter objects emit more IR radiation
   • Absorbed by skin

6. Microwaves

7. Radio waves

   • Emitted from arials