November 2007
Intermediate to advanced
736 pages
46h 32m
English
Content preview from Consumer Electronics
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REFLECTION OF WAVES
When a wave meets a surface separating two materials in which its velocity is different, some of the energy of the wave is reflected. The reflected wave has the same velocity, frequency and wavelength as the incident wave and the two waves are symmetrical with the surface, Fig. 1.14.
In some cases of reflection, a change of phase occurs which is of importance when considering the details of sound and light waves. In external reflection, the phase of a wave changes by 180°. In the case of internal reflection, the incident and reflected waves are in phase. This is shown in Fig. 1.15.
Fig. 1.14 The reflected wave and the ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.