light

quick recap:

  • * flat mirrors are called plane mirrors

  • the normal is a dotted line drawn 90 degrees from the mirror

  • the angle of incidence is always equal to the angle of reflection (measured from incident ray or reflected ray to normal)

  • * concave mirrors are curved away from the object and forms a magnified image

  • * convex mirrors are curved towards the object and provides a wider field of vision

laws of reflection are:

  1. image distance from mirror = object distance from mirror
  2. image is upright

3. image is virtual

4. image is same size as object

  1. image is laterally inverted
  • when light is travelling from denser to less dense medium, it moves away from the normal