Waves

Waves

1. Properties of Waves

   • Longitudinal Waves
     • Vibrations, or oscillations are along the direction in which the energy or wave is moving
     • Sound
   • Transverse Wave
     • A wave that oscillates at a right angle from the source
     • Light, water
   • v = f x λ

2. Light Waves

   • Radio waves
     • Radio, TV
     • Communications and data transfer
   • Microwaves
     • Mobile phone and satellite communication, cooking
   • Infra-red
     • Hot objects
     • Special photographic film, blackened thermometer
     • IR cookers and heaters, Remote controllers, Night vision
   • Visible Light
     • Luminous Object
     • Eyeball, Photographic film, LDR
   • Ultraviolet
     • The sun, UV lamps
     • Fluorescent tubes, UV tanning lamps
     • Skin, photographic film and fluorescent chemicals
   • X-rays
   • Gamma
     • Radioactive materials
     • Geiger Counter
     • Sterilisation, Radiotherapy
   • Refraction
   • Critical Angle

3. Sound waves

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