Let the electric field vector of a plane electromagnetic wave propagating in a homogenous medium be expressed as E↖{→} = x↖{\^}E_{x}e^{−(ω t−β z)} , where the propagation constant β is a function of the angular frequency ω . Assume that β (ω ) and E_{x} are known and are real. From the information available, which one of the following CANNOT be determined?

Question

Let the electric field vector of a plane electromagnetic wave propagating in a homogenous medium be expressed as E↖{→} = x↖{\^}E_{x}e^{−(ω t−β z)} , where the propagation constant β  is a function of the angular frequency ω . Assume that β (ω ) and E_{x} are known and are real. From the information available, which one of the following CANNOT be determined?

Examsnet · Accepted Answer

Correct Answer is : The power flux through the z=0 plane.

GATE Electronics and Communications (EC) 2016 Shift 2 Solved Paper