Problem Statement: Transmission and Antenna Systems Radiation and Wave Propagation Problem Solving An unknown medium was used in a communication system. If the characteristic impedance of that medium is 150 ohms, what is the relative permittivity? a. 5.23 b. 20.51 c. 2.51 d. 2.54 Problem Answer: The relative permittivity of an unknown medium is equal to 2.51. More Questions in: Radiation and Wave Propagation Problem Series of Online Questions and Answers in Radiation and Wave Propagation MORE ON: Questions and Answers in Radiation and Wave Propagation Online Questions and Answers in Communications Engineering per topic Series of Multiple Choice Questions