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Tuesday, August 7, 2007
about:
diverging lenses
author:CaMaE518
Rules for the refraction of Diverging lenses:
Any incident ray traveling parallel to the principal axis of a diverging lens will refract through the lens and its extension is in line with the focal point
Any incident ray traveling towards the focal point on the way to the lens will refract through the lens and its extension is parallel to the principal axis.
An incident ray which passes through the center of the lens will in effect continue in the same direction that it had when it entered the lens.
Ray Diagram for Converging lenses:
- Determine the top most part of the object then draw the three rays- ray parallel to the principal axis, ray passing throught the fical point and ray pasing at the center.
- Follow the Rules for Refection of Diverging lenses: the ray parallel to the principal axis will be refracted in the lens and its extension should pass the focal point.the ray passing the focal length will be refracted by the lens and its extension should be parallel to the principal axis and the ray passing through the lens without changing its direction.
- and their intersection is the top most part of your object.


