Physics Chapter 17

specular reflection
a reflection produced by a smooth surface in which parallel lights rays are reflected in parallel

diffuse reflection
a scattered, fuzzy reflection produced by a rough surface

plane mirror
a flat, smooth surface from which light is reflected by regular reflection, producing a virtual image that is the same size as the object, has the same orientation and is the same distance from the mirror as the object

a luminous or illuminated source of light rays that are the be reflected by a mirrored surface

the combination of image points in a plane mirror from which the reflected object seems to originate

virtual image
the image formed of diverging light rays; is always on the opposite side of the mirror from the object

concave mirror
a mirror that reflects light from its inwardly curving surface and can produce either an upright, virtual image or an inverted, real image

principal axis
a straight line perpendicular to the surface of a mirror that divides the mirror in half

focal point
the point where incident light rays that are parallel to the principal axis converge after reflecting from the mirror

focal length
the position of the focal point with respect to the mirror along the principal axis

real image
an inverted optical image that is smaller than the object and is formed by the converging of light rays

spherical aberration
the image defect of a spherical mirror that does not allow parallel light rays far from the principal axis to converge at the focal point, and produces an image that is fuzzy, not sharp

the amount that an image is enlarged or reduced in size, relative to the object

convex mirror
a mirror that reflects light from its outwardly curving surface and produces an upright, reduced, virtual image

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