An electromagnetic wave going through vacuum is described by E = E0 sin (kx − ωt); B = B0 sin (kx − ωt). Which of the following equations is true?

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E0 k = B0 ω Explanation: The relation between E0 and B0 is given by "E"_0/"B"_0 = "C" ...(1) Here, c = speed of the electromagnetic wave The relation between ​ω (the angular frequency) and k (wave number): ω/"k" = "c" ...(2) Therefore, from (1) and (2), we get : "E"_0/"B"_0 = ω/"k" = "c" ⇒ "E"_0"k" = "B"_0ω

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