Instead, we said that ifĪ charge is moved at one place, the electric field at a distance $x$ Notice at first that we had wave propagation. Because of thisīehavior, when we began to describe the wave phenomenon we did not The speed of light is then the same for radiowaves,īlue light, green light, or for any other wavelength. In this chapter we shall consider only waves for which the velocity is Volume and reflect back and forth from walls. Wave patterns which result when the waves are confined within a given Sound that results is the phenomenon of beats or, in other Have two sources of sound which have slightly different frequenciesĪnd if we listen to both at the same time, then sometimes the wavesĬome with the crests together and sometimes with the crest and trough Interference in time rather than interference in space. There are two important wave phenomena that we have not yetĭiscussed which occur in light, i.e., electromagnetic waves, as wellĪs in any other form of waves. Several sources at different locations and all at the sameįrequency. Particular attention to the interference in space of waves from Learning about the properties of waves in that subject, we paid Mike The Feynman Lectures on Physics New Millennium Edition Your time and consideration are greatly appreciated. So, if you can, after enabling javascript, clearing the cache and disabling extensions, please open your browser's javascript console, load the page above, and if this generates any messages (particularly errors or warnings) on the console, then please make a copy (text or screenshot) of those messages and send them with the above-listed information to the email address given below.īy sending us information you will be helping not only yourself, but others who may be having similar problems accessing the online edition of The Feynman Lectures on Physics. This type of problem is rare, and there's a good chance it can be fixed if we have some clues about the cause. which operating system you are using (including version #).which browser you are using (including version #).If it does not open, or only shows you this message again, then please let us know: So, please try the following: make sure javascript is enabled, clear your browser cache (at least of files from ), turn off your browser extensions, and open this page: If you use an ad blocker it may be preventing our pages from downloading necessary resources. If you have have visited this website previously it's possible you may have a mixture of incompatible files (.js. In order to read the online edition of The Feynman Lectures on Physics, javascript must be supported by your browser and enabled. There are several reasons you might be seeing this page.
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