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chapter 13 vocab
chpater 13 vocabulary
Term | Definition |
---|---|
Opaque | Material in the candleholder only absorbs and reflects light- not only passes through it. |
Translucent | Materials that allow some light to pass through them, like the material of the candleholder. |
Transparent | Transmit almost all the light striking them, so you can see objects clearly through them. |
Index of Refraction | A property of the material that indicates how much the speed of light in the material is reduced. |
Mirage | An image of a distant object produced by the refraction of light through air layers of different densities. |
Pigment | A colored material that is used to change the color of other substances. |
Incandescent light | Is generated by heating a piece of metal until it glows. |
Fluorescent light | uses phosphors to convert ultraviolet radiation to visible light. |
Coherent light | Light of only one wavelength that travels with its crests and troughs aligned. |
Incoherent light | can contain more than one wavelength, and its electromagnetic waves are not aligned. |
Polarized light | the waves vibrate in only one direction. |
Holography | a technique that produces a hologram- a complete 3 dimensional photographic image of an object. |
Total internal reflection | occurs when light traveling from one medium to another is completely reflected at the boundary between the 2 materials. |