The discussion revolves around the calculation of nodal lines created by two point sources emitting waves at the same wavelength, specifically when the sources are separated by a distance of 4.5 times the wavelength.
There is an ongoing exploration of the number of nodal lines, with various interpretations being discussed. Some participants suggest that the original calculation may be incorrect, while others provide reasoning for differing counts of nodal lines based on the arrangement of the sources.
Participants note that the distance given is an odd number of half wavelengths, which raises questions about the practical implications of the scenario and the assumptions involved in the calculations.
It is an even number, yes, but the question is unreasonable in that the given distance is itself an odd number of half wavelengths. There is no way it would be exactly so in practice, and the answer changes according to whether it is just slightly more or slightly less.Mgl003 said:There are 10 nodal lines, because the one in the middle is an anti-nodal line.