A uniform plane wave whose electric field has amplitude 20 V/m propagates in air in the negative y direction and strikes an interface at y = 0 formed by a nonmagnetic medium having a dielectric constant of 36. The radian frequency of the excitation is 30×108 rad/s. If the electric field points in the positive z direction as shown to the right, answer the following questions (1 through 5): 1. What is the magnetic field incident upon the interface? H¹ = − x() e ²¹ b. H = 20e/¹0 A/m J10y c. H¹ = -()/¹0 A/m d. None of the others a. e. -j10y A/m H¹ = ŷ20e/¹0 A/m y Ĥ (μ0₂ &0) y=0 (10,36€)

A uniform plane wave whose electric field has amplitude 20 V/m propagates in air in the negative y direction and strikes an interface at y = 0 formed by a nonmagnetic medium having a dielectric constant of 36. The radian frequency of the excitation is 30×108 rad/s. If the electric field points in the positive z direction as shown to the right, answer the following questions (1 through 5): 1. What is the magnetic field incident upon the interface? H¹ = − x() e ²¹ b. H = 20e/¹0 A/m J10y c. H¹ = -()/¹0 A/m d. None of the others a. e. -j10y A/m H¹ = ŷ20e/¹0 A/m y Ĥ (μ0₂ &0) y=0 (10,36€)