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30 Cards in this Set
- Front
- Back
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a reflected wave |
echo |
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light waves also bounce off from a reflecting surface, and this property is called --- |
reflection |
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states that the angle of incidence is equal to the angle of reflection as measured from the normal line |
law of reflection |
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(2) kind of reflection |
specular (regular) and diffuse reflection |
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occurs when the reflective surface is very smooth such as a mirror or a surface of calm water |
specular (regular) reflection |
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is observed when a light hits a rough surface, resulting to the bouncing back of light waves in different directions |
diffuse reflection |
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dispersal of reflected light |
diffusion |
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reflection of light may also exhibit (2) |
absorption and scattering |
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the transfer of energy carried by the light waves to the particles of matter |
absorption |
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the reflection of light by particles |
scattering |
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the bending of light as it passes from one medium to another |
refraction |
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(2) angles formed in refraction |
angle of incidence and angle of refraction |
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when the angle of incidence produces an angle of refraction that is equal to 90 degrees in the medium, the angle is known as --- |
critical angle |
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the phenomenon wherein the incident rays striking the boundary of two media are reflected back into the first medium and the bounding surface acts like a perfect reflector |
total internal reflection |
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the effect associated with the separation of light into colors by a prism |
dispersion |
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the bending of light as it passes around the edge of a barried is known as --- |
diffraction, or sometimes called scattering |
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modification in the distribution of light energy due to superposition of two light waves is called ----- |
interference of light or optical interference |
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optical effects resulting from diffraction are produced through --- |
the interference of light waves |
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the result of two or more waves coming together is a dark or light band called a --- |
fringe |
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in ---'s --- experiment, he made sunlight pass through long parallel slits. the result was "---" or --- |
"interference fringes" or bands of color |
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occurs when two or more waves come together to form a larger and stronger wave, matching their crests and troughs |
constructive interference |
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occurs when two or more waves' crests coincide with the waves' troughs |
destructive interference |
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is a property of certain types of waves that describe the orientation of their vibratione |
polarization |
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basic unit of light |
photon |
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polarization of light can be classified as (3) |
linear, circular, or elliptical |
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has an electric field that occurs along a line |
linearly polarized light wave |
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if light is composed of two plane waves of equal amplitude but differing in phase by 90 degrees, then the light is said to be --- |
circularly polarized |
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if while looking at the source, the electric vector of the light coming toward you appears to be rotating counterclockwise, the light is said to be ---- |
right-circularly polarized |
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if while looking at the source, the electric vector of the light coming toward you appears to be rotating clockwise, the light is said to be ---- |
left-circularly polarized |
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consists of two perpendicular waves of unequal amplitude which differ in phase by 90 degrees |
elliptically polarized light |
