# Light reflection and refractio

The following paper is on the chapter of light reflection and refraction.
states that when a light ray strikes a reflecting surface, the angle of reflection is equal to the angle of .
incidence. The angle of incidence and the angle of reflection are measured from a normal that is .
perpendicular to the angle of incidence. Reflected rays are scattered in different directions depending on .
the surface reflected on. A diffuse reflection is a reflection of light into many directions by a rough .
surface. An example of this would be: paint on a wall has a rough surface which will scatter the light rays .
that are reflected onto it in different directions. Another Type of reflection is a regular reflection. This is .
a reflection of light where both of the light rays follow the law of reflection and are parallel to each .
other. .
The next section in the chapter is on the refraction of light. When light is introduced into different .
environments or mediums, light will travel at different speeds and in different directions. If light travels .
faster through one medium than another than the medium that the light travels through sloweris .
considered to be optically dense. Refraction is the/a change in direction or bending of light at the border .
between two mediums. Now, refraction only occurs when the ray of incident hits a boundary between .
the two media at a non-zero angle. Light is refracted toward the normal when it passes to a denser .
medium, and light is refracted away from the normal when the light ray passes into a medium that is l;ess .
dense. .
The next section is on Snell's Law. The law states that a ray of light bends in such a way that the .
ration of the sine of the angle of incidence to the sine of the angle of refraction is constant. This law .
came from the Dutch scientist Willebrord Snell, who discovered the relationship between the angle of .
incidence and the angle of refraction. This relationship is that if the angle of incidence increases, the .

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