6.4.2 Properties and Applications of Electromagnetic Waves

Radio Wave

  1. Telecommunications
  2. Broadcasting: Radio and television transmission
  3. Astronomy study

Microwave

  1. Satellite transmissions
  2. Radar systems to detect objects(size, form and position)
  3. Cooking

Infrared

  1. Night vision
  2. Thermal imaging and physiotherapy
  3. Remote controls for TV/VCR
  4. Heating in physiotherapy
  5. Thermometer
  6. Cooking

Visible Light

  1. Sight
  2. Photosynthesis in plants
  3. Photography

Ultraviolet

  1. Identification of counterfeit notes
  2. Production of fluorescent effects
  3. Production of vitamin D in the skin
  4. Sterilisation to destroy germs
  5. Pest control

X-ray

  1. Disinfecting drinking water
  2. Radiotherapy
  3. Radiography (X-ray photograph)
  4. Detection of cracks in building structures

Gamma Ray

  1. Crystallography
  2. Cancer treatment
  3. Sterilisation of equipment
  4. Pest control in agriculture