Chapter 29 vocabularyyy
the bouncing back of a particle or wave that strikes the boundary between two media.
a line perpendicular to it's surface
|angle of incidence||angle between an incident ray and the normal to a surface|
|angle of reflection||angle between a reflected ray and the normal to a surface|
|law of reflection||the angle of incidence for a wave that strikes a surface is equal to the angle of reflection|
|virtual image|| |
an image formed through reflection or refraction that can be seen by an observer but cannot be projected on a screen because light form the object does not actually come to a focus
|diffuse reflection|| |
the reflection of waves in many directions from a rough surface
|reverberations||Persistence of a sound, as in an echo, due to multiple reflections.|
|refraction||The change in direction of a wave as it crosses the boundary between two media in which the wave travels at different speeds|
|wave fronts|| |
The crest, trough, or any continuous portion of a 2-D or 3-D wave in which the vibrations are all the same way at the same time.
|mirage||A floating image that appears in the distance and is due to the refraction of light in Earth's atmosphere|
the separation of light into colors arranged according to their frequency
|critical angle||the minimum angle of incidence for which a light ray is totally reflected within a medium.|
|total internal reflection||the 100% reflection(with no transmission) of light that strikes the boundary between two media at an angle greater than the critical angle|
|optical fibers||A transparent fiber, usually of glass or plastic, that can transmit light down its lenght by means of total internal reflection.|
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- "Reflection" image
- "normal" image
- "virtual image" image
- "diffuse reflection" image
- "wave fronts" image
- "dispersion" image
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