A0.5 MHz antenna carried by an airplane flying over the ocean surface generates a wave that approaches the water surface in the formea normally incident plane wave with an electric-field amplitude of 5500 V/m. Seawater is characterized by a dielectric constant of 72,relative permeabity of 1 and conductivity of 4 Slm. The plane is trying to communicate a message to a submarine submerged at a depth dbelow the water surface.If the submarine's receiver requires a minimum signal ampitude of 0.03 u Vim), what is the maximum depth d to which successfulcommunication is still possible?Answer

(given) Conductivity σ=4 S/m Dielectric constant(εr)=72 Relative permeability μr=1 Frequency (f) =…

MHz antenna carried by an airplane flying over the ocean surface generates a wave that approaches the water surface in the form of a normally incident plane wave with an electric-field amplitude of 5500 VIm. Seawater is characterized by a dielectric constant of 72, relative permeabity of 1 and conductivity of 4 Sim. The plane is trying to communicate a message to a submarine submerged at a depth d below the water surface. If the submarine's receiver requires a minimum signal amplitude of 0.03 u Vim), what is the maximum depth d to which successful communication is still possible? Answer-

MHz antenna carried by an airplane flying over the ocean surface generates a wave that approaches the water surface in the form of a normally incident plane wave with an electric-field amplitude of 5500 VIm. Seawater is characterized by a dielectric constant of 72, relative permeabity of 1 and conductivity of 4 Sim. The plane is trying to communicate a message to a submarine submerged at a depth d below the water surface. If the submarine's receiver requires a minimum signal amplitude of 0.03 u Vim), what is the maximum depth d to which successful communication is still possible? Answer-

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 46P: A plane electromagnetic wave of frequency 20 GHz moves in the positive y-axis direction such that...

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