How do dielectrics affect the number of modes for standing electromagnetic waves in a box?
I suspect that it doesn't, since a dielectric shouldn't affect the null field value for standing waves at the boundaries. I just wanted to confirm if my thinking was right.What are your thoughts? How does the presence of a dielectric affect the wavelength of the EM in the metallic reflecting box?
What do you mean by "the number of"? Is there a finite number of modes? Or you mean the number density (per frequency interval, forexample)?