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# A parallel-pole electromagnetic wave with a frequency of 10 kHz comes from the air towards the...

## Question

###### A parallel-pole electromagnetic wave with a frequency of 10 kHz comes from the air towards the...
A parallel-pole electromagnetic wave with a frequency of 10 kHz comes from the air towards the ocean surface, with an angle of incidence θi = 81 °. Here, since the electrical properties of ocean water are ?? = 81, ?? = 1, ? = 4;
a) Find θt refraction angle, ? || the penetration coefficient and the ocean depth where the electric field intensity decreases by 30 dB.
b) If a perpendicular polar electromagnetic wave from a source below the ocean to the air came to the water-air interface with θi = 20 °; What would be the critical angle θc? You can use these relations Yardımcı Bağıntılar 2n, cos 0 tll 7, cos 0, +7, cos e 7, cos 0, 1 n, cos 0 ΓΙΑ n, cos 0, + n, cos e 2n, cos e n, [email protected], + , cos , 1, cos 0 : - n, cos 0, 7, cos 0, +n, cose,

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