3.12 - Uses of Electromagnetic Radiation

- Radio Waves: Mobile Phones and broadcasting

- Microwaves: Cooking (microwaves heats up water inside the food) and satellite transmissions

- Infrared: Heaters, night vision equipment and surveillance

- Visible Light: Used for seeing, photography and optical fibres

- Ultraviolet: Fluorescent Lamps

- X- Rays: Used for medical purposes like observing the internal structure of objects and materials

- Gamma Rays: Sterilising food and medical equipment