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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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angle of reflection |
the angle formed by the reflected ray and the normal |
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angle of incidence |
the angle formed by the incident ray and the normal |
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angle of refraction |
the angle of a ray of light emerging from the boundary between the two materials, measured between the refracted ray and the normal |
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concave |
curved inwards (like the bowl of a spoon) |
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convex |
curved outwards (like the back of a spoon) |
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diverging |
speading apart |
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focal point |
the point at which converging light rays meet or from which light rays diverge |
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lens |
a curved price of transparent material that refracts light in such a way as to converge or diverge parallel light rays; in the eye the flexible convex structure is behind the pupil and the iris |
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normal |
normal |
An imaginary line drawn perpendicular to a reflecting or refracting surface at the point where an incident ray strikes the surface |
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opaque |
Absorbing or reflecting all light and not allowing any light to pass through |
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translucent |
Allowing some light rays to pass through but not enough to see objects clearly |
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transparent |
Allowing light to pass through freely so that all images are clearly seen |
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