Reflection

• Waves can be reflected at the boundary between two different materials
• Angle of incidence = Angle of reflection
• The normal line is always perpendicular to the surface

  A) Incident ray

  B) Angle of incidence

  C) Normal

  D) Angle of reflection

  E) Reflected ray

  F) Mirror

  
• Specular reflection happens when a wave is reflected in a single direction by a smooth surface
• Diffuse reflection happens when the reflected rays are scattered in lots of different direction