Find the initial phase of the electric field intensity

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Reference no: EM13262815

If i were to have a plane wave in free space with the following E field intensity:

E = 15cos(ωt + 10πz + θ) in the y direction V/m

and H at t=0 z=1.15m is 0.02 A/m

how can I find the initial phase, θ, of the electric field intensity at t = 0 and z = 0?

Reference no: EM13262815

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