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This Concept Map, created with IHMC CmapTools, has information related to: refraction1, An incident ray travelling parallel to the principal axis after refraction will travel through the focal point can be used to predict image location, size, orientation and type of image using convex lenses, Angle of refraction and the normal lie in the same plane which is called the 1st law of refraction, the change in speed of light causes the "twisting" of wavefronts of incident light at the boundary of the medium, from an optically denser one it bends away from the normal Which are all due to the "twisting" of wavefronts of incident light at the boundary of the medium, only virtual images the image formation follows three general rules for thin concave lenses, Diverging Lens is called so because it diverges rays of light travelling parallel to the principal axis to travel inline with the focus, follows three general rules for thin concave lenses which are An incident ray travelling parallel to the principal axis of a diverging lens will refract through the lens and travel inline with the focal point, follows three general rules for thin convex lenses which are An Incident ray which passes through the center of the lens will inaffect continue in the same direction that it had when it entered the lens, an incident ray of light enters into a medium. from an optically denser one it bends away from the normal, Focus light on the fovea of the retina by Changing the thickness of the lens which is called accomodation., Rainbows are the result of refraction and total internal reflection, the bending of light which is caused by the change in wavelength of light, the "twisting" of wavefronts of incident light at the boundary of the medium which leads to the bending of light, The lens and cornea of the eye behave like a converging lens Converging lens, the change in wavelength of light When an incident ray of light enters into a medium., REFRACTION is the bending of light, Virtual images are images that can never be obtained on a screen., the change in wavelength of light causes the "twisting" of wavefronts of incident light at the boundary of the medium, travelling perpendicular to the surface. It does not bend. Which are all due to the "twisting" of wavefronts of incident light at the boundary of the medium, a raindrop behaves like a prism which leads to Dispersion