The wavelength of the EM signal propagation in the T.I.L for duct propagation is _________(a) \(λ=2.5h_d \sqrt{∆μ×10^{-6}} \)(b) \(λ=2.5h_d \sqrt{∆μ×10^6} \)(c) \(λ=5.2h_d \sqrt{∆μ×10^{-6}} \)(d) \(λ=25h_d \sqrt{∆μ×10^{-6}} \)I had been asked this question in a job interview.My question is from Space Wave Propagation in portion Space Wave Propagation of Antennas

The wavelength of the EM signal propagation in the T.I.L for duct prop

1.	The wavelength of the EM signal propagation in the T.I.L for duct propagation is _________(a) \(λ=2.5h_d \sqrt{∆μ×10^{-6}} \)(b) \(λ=2.5h_d \sqrt{∆μ×10^6} \)(c) \(λ=5.2h_d \sqrt{∆μ×10^{-6}} \)(d) \(λ=25h_d \sqrt{∆μ×10^{-6}} \)I had been asked this question in a job interview.My question is from Space Wave Propagation in portion Space Wave Propagation of Antennas
Answer» The correct choice is (a) \(λ=2.5h_d \SQRT{∆μ×10^{-6}} \) To ELABORATE: The wavelength of the EM signal propagation in the T.I.L for DUCT propagation is \(λ=2.5h_d \sqrt{∆μ×10^{-6}} \) Here ∆μ is CHANGE in the refraction index in HEIGHT hd.

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