Aim: to investigate how light behaves when it hits a plane (flat) mirror
Method: 1. collect a ray box, power supply, and single-slit ray slide from your teacher, and set them up to produce a single beam of light
2. place a plane mirror on the diagram of a protractor as seen below
3. vary the angle of incidence and record the angle of reflection in a results table
results: the angle of incidence and reflection are the same