click below
click below
Normal Size Small Size show me how
Waves
Question | Answer |
---|---|
the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced. | diffraction |
he fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density. | refraction |
A plucked guitar string is a simple example of a standing wave. A plucked string emits a particular sound frequency depending on the string length and how taut or dense the string is. | standing wave |
the throwing back by a body or surface of light, heat, or sound without absorbing it. "the reflection of light" | reflection |
occurs when the maxima of two waves add together the two waves are in phase, so that the amplitude of the resulting wave is equal to the sum of the individual amplitude. | constructive interference |
occurs when waves come together so that they completely cancel each other out. When two waves destructively interfere, they must have the same amplitude in opposite directions. | destructive interference |
every charge in space creates an electric field at point independent of the presence of other charges in that medium. The resultant electric field is a vector sum of the electric field due to individual charges. | principle of superposition |
sounds produced by the combination of two waves with almost the same frequencies. Wave beats are caused by wave interference. | beats |
the net effect of the combination of two or more wave trains moving on intersecting or coincident paths. The effect is that of the addition of the amplitudes of the individual waves at each point affected by more than one wave. | interference |
a point along a standing wave where the wave has minimum amplitude. For instance, in a vibrating guitar string, the ends of the string are? | nodes |