11.6 The Law of Reflection and Plane Mirrors

11.6 Blog: The Law of Reflection and Plane Mirrors

Diffuse Reflection

Today we learned about chapter 11.6 which was about the laws of reflection and plane mirrors. Light travels in a straight line. A light ray is a line and arrow that represents the path of light. Reflection is light bouncing back from any surface. However a mirror is the most commonly used way to reflect light, in this video it shows us how this is done. A mirror is any polished surface that reflects. Specular reflection (picture) is the reflection of light off a smooth surface. Diffuse reflection (picture) is the reflection of light off a surface that is not smooth.

          

 

Laws of Reflection

1. The Incidence angle equals the angle of reflection, so basically the angle between the incident ray and normal is equal to the angle between the reflection rays and normal.



Incidence Angle = Reflection Angle

2.   The Incident ray, reflection ray and the normal all lie on the same plane

By: N.M. & T.C.