Light

• Light - is electromagnetic radiation

  that has properties of waves

  and particles.
• Reflection of Light

  • a property that bounce off

  from a reflecting surface. It

  occurs when the waves

  encounter a surface or other

  boundary that does not absorb

  the energy of the radiation and

  bounces the waves away from

  the surface
• Two kinds of Reflection

  1. Specular
  2. Diffuse
• Absorption of light - is the process in which light

  is absorbed by matter and

  converted into energy.
• Scattering of light - a change in the direction of

  motion of a particle because of

  a collision with another

  particle.
• Refraction of Light

  • is the bending of light as it

  passes from one transparent

  substance into another. This

  bending by refraction makes it

  possible for us to have lenses,

  magnifying glasses, prisms and

  rainbows.
• Dispersion of Light

  • process of splitting

  of white light into seven

  colours.
• Specular Reflection - is a type of surface

  reflectance often described as a

  mirror-like reflection of light

  from the surface.
• Diffuse Reflection - is the reflection of light

  from a surface such that an

  incident ray is reflected at

  many angles, rather than at just

  one angle as in the case of

  specular reflection.
• Scattering of Light - a change in the direction of

  motion of a particle because of

  a collision with another particle.
• What law is this? Reflection

  
• What law is this? Refraction