2.3
image
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diverging lens: a lens such that a parallel beam of light passing through it is caused to diverge or spread out
concave lens
a mirror with a surface that curves inward like the inside of a bowl
concave mirror
converging lens: lens such that a beam of light passing through it is brought to a point or focus
convex lens
a mirror with a surface that curves outward
convex mirror
the point at which rays parallel to the optical axis meet or converge
focal point
a copy of an object formed by reflected or refracted rays of light
image
the angle of incidence equals the angle of relection
law of reflection
curved piece of glass or other transparent material
lens
an imaginary line that divides a mirror in half
optical axis
flat sheet of glass that has a smooth, silver-colored coating on one side
plane mirror
forms when rays actually meet
real image
occurs when an object or wave bounces back off a surface through which it cannot pass
reflection
bending of light waves due to a change in speed
refraction
the image you see in a plane mirror
virtual image
