Light
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Introduction
Light is write this section last... [1]
What Is Light?
Properties Of Light
Light has many interesting and fascinating properties that still fascinate physicists today.
Reflection
When light strikes a reflective surface, it will bounce off it at a different direction. The angle of the reflected beam is equal to the angle of the beam hitting the reflective surface, or, more simply stated by the Law of Reflection, “the angle of incidence is equal to the angle of reflection”. There are two types of reflection: specular and diffused. Specular reflection is reflection off of a flat surface, such as a mirror. This produces a flat, undisturbed picture. Diffused reflection is reflection coming off of a rough or bumpy surface, producing a muddled and unclear picture. [3]
Refraction
Whenever light travels through a boundary between two mediums, the light bends. This is because of the density differences between the two mediums. Since one of the mediums is more dense than the other, the speed of light within the medium is slower, and this causes the bending. This can be seen when items underwater such as fish appear larger while under the water than they are out of the water. [4]
Dispersion
References
- ↑ Title Author, Publisher, Date.
- ↑ 2.0 2.1 Title Author, Publisher, Date.
- ↑ Reflection Think Quest, Accessed April 10, 2011
- ↑ Properties Of Light Physics Planet, Accessed April 10, 2011
Additional Information
- Title Author, Publisher, Date.
