A plane wave is incident at an angle of zero degrees from air onto the earth, as shown below (For an incident angle of z

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A Plane Wave Is Incident At An Angle Of Zero Degrees From Air Onto The Earth As Shown Below For An Incident Angle Of Z 1 (21.98 KiB) Viewed 33 times

I am really just confused on how to solve for n2. Thank you!
A plane wave is incident at an angle of zero degrees from air onto the earth, as shown below (For an incident angle of zero degrees, the plane wave may be considered to be either TM, or TEz.) The earth has & = 10 and 0 = 0.1 [S/m]. The frequency is 200 [MHz]. a) Find the percent power that is reflected. (10 pts.)

Incident plane wave X earth Z

Part (a) 12. = 376.73 [2] n2 = 95.934 + j(36.776) [2] I=-0.5845+ j(0.1233) |1P = 0.357 100|| = 35.7 percent power reflected = 35.7