1. Law Of Reflection Law Of Reflection Alain De Leon 2 nd Period Physics 5/24/11

2. Law of Reflection The law of reflection states that the angle of incidence of a wave or stream of particles reflecting from a boundary, conventionally measured from the normal to the interface (not the surface itself), is equal to the angle of reflection, measured from the same interface, The law of reflection states that the angle of incidence of a wave or stream of particles reflecting from a boundary, conventionally measured from the normal to the interface (not the surface itself), is equal to the angle of reflection, measured from the same interface, - The angle of incidence is equal to the angle of reflection - The incident ray, the normal, and the reflected ray are coplanar - The angle of incidence is equal to the angle of reflection - The incident ray, the normal, and the reflected ray are coplanar

3. Specular Reflection Specular reflection (regular reflection) occurs when incident parallel rays are also reflected parallel from a smooth surface. If the surface is rough (on a microscopic level), parallel incident rays are no longer parallel when reflected. This results in diffuse reflection (irregular reflection). The laws of reflection apply to diffuse reflection. The irregular surface can be considered to be made up of a large number of small planar reflecting surfaces positioned at slightly different angles. Indirect (or diffuse) lighting produces soft shadows. It produces less eye strain than harsher, direct lighting. Specular reflection (regular reflection) occurs when incident parallel rays are also reflected parallel from a smooth surface. If the surface is rough (on a microscopic level), parallel incident rays are no longer parallel when reflected. This results in diffuse reflection (irregular reflection). The laws of reflection apply to diffuse reflection. The irregular surface can be considered to be made up of a large number of small planar reflecting surfaces positioned at slightly different angles. Indirect (or diffuse) lighting produces soft shadows. It produces less eye strain than harsher, direct lighting.

4. Fermat’s principal Pierre de Fermat, a French lawyer came up with a principal that can be used to derive the law of reflection, the path taken between two points by a ray of light is the path that can be traversed in the least time. Mathematically, It is written as Pierre de Fermat, a French lawyer came up with a principal that can be used to derive the law of reflection, the path taken between two points by a ray of light is the path that can be traversed in the least time. Mathematically, It is written as