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# Chapter 17 Vocab

### Chapter test

TermDefinition
Principal Axis A straight line perpendicular to the surface of a spherical mirror that divides the mirror in half.
Specular Reflection Reflection in which rays are reflected in parallel.
Image The combination of image points produced by light rays from an object______of the object.
Plane Mirror A flat, smooth surface from which light is reflected by regular reflection.
Object A source of light rays.
Diffuse Reflection The scattering of light off a rough surface.
Concave Mirror The reflective surface of a(n) ____________ have edges that curve toward the observer.
Virtual Image Diverging light rays produce a(n) ________ of an object.
Focal Point At the _______ of a mirror, incident light rays that are parallel to the principal axis converge after reflecting from the mirror.
Convex Mirror A reflective surface with edges that curve away from the observer.
Real Image An image formed by the converging of the light rays.
Spherical Aberration Makes images formed by some spherical mirrors appear fuzzy.
Focal Length The distance from the focal point to a mirror along the principal axis.
Magnification The amount by which an image is enlarged or reduced relative to an object.
Law of Reflection Ɵr = Ɵi
Plane Mirror Image di = do
Plane Mirror Image hi = ho
Focal Length (equation) f = r/2
Object (Symbol) bo
Equation for Magnification M = hi = -di —- —- ho do
Created by: felicity233