Reflections/Experiments

• When Light enters a different medium, its velocity changes.

  
• Angle of Incidence = Angle of Reflection

  
• The Normal is an Invisible line, perpendicular to the boundary.

  
• Reflection can be Specular or Diffuse Scattering.

  
• When light hits a Smooth surface, it reflects in a single direction.

  
• When light hits a Rough surface, it reflects rays in different directions.

  
• In Diffuse Scattering, you do not get a clear reflection of an object.

  
• Waves can be Absorbed, Transmitted or Reflected.
• When entering a different medium

  
  

  - Waves slow down

  - Change direction

  - Bend towards normal.