2 • Reflection of Light - Terminology

Define Reflection

When light strikes a smooth surface it bounces back from that surface

Define the Laws of Reflection • 1

Incident ray, normal and reflect ray all lie on the same plane

Define the Laws of Reflection • 2

Angle of incidence is equal to the angle of reflection

Label This Diagram

Reflection

a - incidence ray

b - reflected ray

c - normal

d - angle of incidence

e - angle of reflection

State the conclusions from the laws of reflection • 1

Plane mirror image is as far is as far behind the mirror as the object in front

State the conclusions from the laws of reflection • 2

When a plane mirror is rotated through a certain angle the reflected ray is rotated twice that angle

Define Real Image

The actual intersection of light rays

Define Virtual Image

The apparent intersection of light rays