Waves

Waves

1. Transverse

2. Longitudinal

   • Sound
     • Loudness and pitch
       • loudness : amplitude
       • pitch : frequency
     • Needs medium
     • Speed
       • 340m/s in air
       • 1000-1500m/s in liquids
       • 5000m/s in metals / solids

3. Refraction

   • Refractive index of material = speed of light in vacuum / speed of light in material

4. Dispersion

   • Refraction of white light causes it to disperse into its component colors
   • Light of a single frequency is called MONOCHROMATIC light