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Light and Optics

Teacher: __________________________________
Across
Type of lens that diverges light rays.
Transparent object with flat surfaces that is used to separate the visible spectrum.
Light particle.
Maximum displacement of a wave from the equilibrium to the crest or the trough.
Top of a wave.
In a plane mirror, the angle of incidence equals the angle of _____.
"Bending" of light.
Opposite of "inverted".
_____ images can not be projected on a screen.
The visible _____ is composed of the seven colors of visible light.
The _____ of objects is the light reflected back to our eyes.
Down
Type of lens e.g. magnifying glass
Light that humans see.
Speed of light in a _____ is 3.0 x 10^8 m/s.
Infrared and ultraviolet light are _______ to the naked eye.
Distance between crests of consecutive waves.
Bottom of a wave.
Visible light with the longest wavelength.
Light travels in _____ lines.
Light rays in optical fibers travel at the _____ angle for total internal reflection.