1. Behavior of Light

2. Behavior of Light
Reflection - If an object does not emit its own light (which accounts for most objects in the world), it must reflect light in order to be seen. ... A beam of light incident on the metal surface is reflected. Reflection involves two rays - an incoming or incident ray and an outgoing or reflected ray.

3. Behavior of Light
Refraction - Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. For example, when light travels from air into water, it slows down, causing it to continue to travel at a different angle or direction.

4. Behavior of Light
Diffraction -  occurs when a light wave passes by a corner or through an opening or slit that is physically the approximate size of, or even smaller than that light's wavelength, which causes the light to bend around the barrier.

5. Behavior of Lights