Turn in a two to three page paper that addresses the following topics. Be sure t

Question

Turn in a two to three page paper that addresses the following topics. Be sure to answer in your own words! 1. (Rev 2/11) Describe, in a qualitative way, what Maxwell's Equations mean. Relate your discussion to the following simulation of an electromagnetic wave (See Background Information). Fendt, W. (1999). Electromagnetic wave (demonstration). Retrieved on March 1, 2008, from http://www.walter-fendt.de/ph14e/emwave.htm 2. (Rev 2/11) A hundred years before Einstein, Maxwell's Equations provided good evidence that the speed of light should be a constant with respect to all observers. How? 3. Explain how you could find the frequency of an electromagnetic wave if you know the wavelength and the velocity of the electromagnetic wave.

Explanation / Answer

(1) I like the graphic that link took me to. Well, simply put in words, according to Maxwell, the changing magnetic field induces an electirc field AND vice versa. The waves that are generated always remain perpendicular to eachother, and as they change they actually perpetuate one another. So, their fluxtuation is actually what keeps them going. The right-hand-rule (assuming you have learned that) dictates the direction the light will travel based on the direction the Magnetic and Electic fields are pointing at a given time. (2) Well, Maxwell came up with the formula for the speed of light And if you will notice, there are NO velocity variables to allow for your velocity to change that. It is strictly a function of those two variables. One of which may change depending on the medium through which the light is traveling, but that is all. Your speed is not in there. c*c=1/ue (3) This one is simpler, v / ? = f

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