Regular and diffuse reflectors – 2 types of reflectors

May 29th, 2015
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Murray State University
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Regular reflection – light rays are reflected in an orderly way. – We experienced this reflection when we look into a mirror – They are shiny eg. Gloss paint and waxy surfaces Diffuse reflection – reflected rays are scattered in many directions – light rays that strike these surfaces are reflected randomly – rough surfaces eg. Paper, concrete and rubber

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REFLECTIONRegular and diffuse reflectors 2 types of reflectorsRegular reflectionlight rays are reflected in an orderly way. We experienced this reflection when we look into a mirrorThey are shiny eg. Gloss paint and waxy surfacesDiffuse reflectionreflected rays are scattered in many directionslight rays that strike these surfaces are reflected randomlyrough surfaces eg. Paper, concrete and rubberLateral Inverted is when an image is in the right way up but the right hand side of an object becomes the left hand side and vice versa (eg. Plane mirror)Reflection of light terms:Incident raythe incoming ray that strikes the reflecting surfaceReflected raythe outgoing ray, the one leaving the surface after being reflectedNormal A line drawn at 90to the reflecting surface or its tangent at the point where the incident ray touches it (dotted line usually)Angle of incidence (i)The angle between the normal and the reflected rayAngle of reflection (r)The angle between the normal and the incident rayRay diagrams special diagrams are used to show how a mirror reflects an image of an object. Laws of Reflection: The behavior of a light ray when it is reflected by a surface is governed by two rules:1) The angle of incidence is equal to the angle of reflection. 2) The incident ray and the reflected ray are in the same plane as, but on opposite sides of, the normal.a) Plane mirror (images are laterally inverted!) Produces an imag

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