ipc unit 10-mel

3. a type of interference that occurs at any location along the medium where the two interfering waves have a displacement in the opposite direction.
7. a type of interference that occurs at any location along the medium where the two interfering waves have a displacement in the same direction.
8. the time it takes something to happen
9. a wave or signal whose frequency is an integral (whole number) multiple of the frequency of the same reference signal or wave.
10. the minimum or lowest point in a cycle.
11. property of certain electromagnetic radiations in which the direction and magnitude of the vibrating electric field are related in a specified way.
14. amplitude, in physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position.
15. a vibration of a system in which some particular points remain fixed while others between them vibrate with the maximum amplitude.

1. a wave vibrating at right angles to the direction of its propagation.
2. the rate at which something occurs or is repeated over a particular period of time or in a given sample.
3. the slight bending of light as it passes around the edge of an object.
4. the throwing back by a body or surface of light, heat, or sound without absorbing it.
5. a disturbance that moves energy from one place to another
6. the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
12. the change in direction of a wave passing from one medium to another caused by its change in speed.
13. forming a necessary base or core; of central importance.