Flat mirrors produce images that are

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Flat mirrors produce images that are..
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Refraction (bending through) happens only when
waves hit a medium on an angle. Why?
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Light going into a denser medium bends____________
Light going into a less dense medium
bends____________
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Snells Law
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Is this wave bending toward the normal?
normal
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Curved MirrorsConvexConcave
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Convex Lenses bending toward the normal on a
convex surface brings light rays together
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Concave Lenses bending toward the normal on an
oppositely curved surface (concave) diverges the
light rays
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Focusing and Spherical Aberration
Mirrors and lenses with circular curvature create
spherical aberration, where rays from the top
edges of the mirror dont focus.
Spherical aberration is corrected by making the
lens shape more parabolic
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Chromatic Aberration Blue bends more. This
cannot be corrected. You could minimize it it by
using less of the lens edges (closing down the
aperture)
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Image inversion on retina
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