58. Two parallel wires, some ends of which are isolated, and the other is inductively coupled to a generator of electromagnetic waves immersed in alcohol. With proper selection of the oscillation frequency in the standing waves occur. The distance between two nodes of standing waves on the wires is 0.5 m. Taking alcohol permittivity ε = 26 and its magnetic permeability μ = 1, determine the frequency of the oscillator.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)