Question: Which wave is single-frequency and satisfies the wave equation? A. E(~r, t) = e y cos(3t) B. E(~r, t) = 12z 2t C. E(~r, t)

Which wave is single-frequency and satisfies the wave equation? A. E(~r, t) = e y cos(3t) B. E(~r, t) = 12z 2t C. E(~r, t) = 2 exp[j(2x + 3y 7t)] D. E(~r, t) = e 5t5y E. E(~r, t) = cos(t) sin(x)

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