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the Law of Reflection
the angle of incidence is equal to the angle of reflection
reflection off of smooth surfaces
reflection off of rough surfaces
a wave is bent due to a change in speed
index of refraction
..., a measure of the amount a ray of light bends when it passes from one medium to another
a piece of glass that separates white light into ROY G BIV
the part of the electromagnetic spectrum that can be seen. visible ligth makes up only 35 percent of natural sunlight
Pure or fundamental colors (red, yellow, and blue) that cannot be created by combining other colors.
Colors obtained by mixing equal parts of two primary colors, Green, Orange, Violet
primary colors of light are this
secondary colors of light are this
the absorbing of colors
the reflecting of colors
human color sensitivity
in the retina, cones can sense color, unlike rods
A hole in the iris through which light passes
muscular diaphragm that controls the size of the pupil
Clear, transparent surface where most of the bending (refraction) occurs.
...a curved piece of glass or other transparent material that refracts light.
the white of the eye
innermost layer that perceives and transmits light to the optic nerve
Sends signals to your brain from the retina
distance between two consecutive crests which are in phase with one another
nomenclature of the EM spectrum
electromagnetic spectrum; visible light, infared light, etc.
change in apparent frequency
bright line spectra
high to low energy
the electromagnetic spectrum
planets pull each other
What causes red light to leave at a lower angle?
A mirror whose rays will be reflected and diverge away from each other
A mirror whose rays will be reflected and converge to a focus
the tracing of a ray
Sign Conventions for Lenses
..., the point at which light rays parallel to the optical axis meet when reflected or refracted
`, an image of an object formed by light rays that actually come together at a specific location
a reflected optical image; see "inverted image"
image with same orientation as object; see "real image"
For lenses, when is M negative?
a wave strikes a boundary and bounces back
bends light to focus
Narrow beams of light
Stream of Light Rays
All light passes through; can see through clearly eg. glass
a type of material that scatters light as it passes through it
impossible to see through; preventing the passage of light
A line drawn at right angles to the reflecting surface at the point where the incidence ray hits; All angles are measured from here
Total Internal Reflection
Sin(critical angle)= n2/n1
Instrument to create rays of light in experiments
Concave on both sides
Convex on both sides