Circular wave and parallel wave
My name is: (also known as plane wave) parallel wave those mountains and
valleys of the wave is a straight line.In addition, circular wave those
in the form of a circle: My name is (also known as spherical wave). There
is something like that shown in the following diagram: The circular wave
and parallel wave.
Prime element wave
Vibration of the very beginning that occurred in wave source, will transmitted
around Become a circular first wave.Each part of this circular Since the
vibration, then, each point becomes the new wave source, I will send out
the vibration, respectively.
I called a prime element wave a wave of circular waves emanating from each
point on the wave like this.In addition, it is known as Huygens' principle
the idea to become wavefront tie the surface that are common on the basis
of the original wave.
Diffraction
Wave passes through the gap and spreads in a circle.In this way, I called
the diffraction properties sneaking behind the obstacle.Diffracted wave
is easy to sneak behind the obstacles and to reduce the gap, but it will
not wrap behind the obstacles and to increase the gap.