1. Interference
1.1. As a result of the wave's origin Federation (sending waves with fixed frequencies. The wavelength and wave speed is constant) from two or more sources have come together to colliding, or a combination of the two waves break.
1.1.1. (Antinode : A)
1.1.2. (node : N)
2. Diffraction
2.1. refers to various phenomena that occur when a wave encounters an obstacle or a slit. It is defined as the bending of waves around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle
3. Wave characteristics
3.1. phase
3.2. wavwlength
3.3. frequency
3.4. period
3.5. wwave velocity
4. Reflection
4.1. Change the direction of the waves at the interface of two media types, and make a return to the kind of
4.1.1. the reflection of light waves
4.1.2. sound waves reflected by the rules.
4.2. The laws of reflection
4.2.1. When reflections every time incident angle equals the angle of reflection.
4.2.2. When a beam is incident to the glass surface or a rough surface will result in the light reflected back to the Raiders incident radiation.
4.3. The reflected waves in the rope
4.3.1. Reflections of a wave on a string ends (loose-ends intended heirs.) Wave reflection, Facebook will have a long phase of the incident wave.
4.3.2. Reflections of a wave on a string freeze tight ends (end tightly bundle). Wave reflection would have the project phase of faset wave incident.
5. Reflaction
5.1. The properties of the wave What happens when a wave travels from one medium. One medium to another, with different features. Which triggers a wave of change to speed.
5.2. the laws of reflaction
5.2.1. 1. the direction of the incident wave. Line (geometry) and the direction of the wave is refracted in the same plane.
5.2.2. 2. the ratio of the sine of the angle values of the sine of the angle of refraction for a pair of intermediaries are always constant.