Physics Classroom
The Physics Classroom: Reflection and Ray Model of Light: The Line of Sight
Students explore this simple physics principle: In order to view an object, you must sight along a line at that object; and when you do light will come from that object to your eye along the line of sight.
Physics Classroom
The Physics Classroom: Reflection and Ray Model of Light: Role of Light to Sight
In this physics tutorial, students explore the phenomenon of the fact that without light, there would be no sight.