LT #2 - Law of Reflection & Creating Images in Mirrors

Question 1

What is the law of reflection?

Answer 1

The angle of incidence equals the angle of reflection

Question 2

When does specular reflection occur? Give an example of specular reflection occurring.

Answer 2

When parallel light rays strike a smooth surface and reflect parallel. Ex. Waxed Car, Glossy finish (paint, photo, etc), mirrors, calm water

Question 3

When does diffuse reflection occur? Give an example of diffuse reflection occurring

Answer 3

When parallel light rays strike off of a rough surface and reflect in different directions. Ex Brick/Stone, Matte finish (photos, eggshell paint), rough water.

Question 4

What is a normal?

Answer 4

An imaginary line where the incident ray strikes a mirror surface. The line is perpendicular to the mirror surface