Multiple choice

The electric field of a uniform plane electromagnetic wave in free space, along the positive x direction, is given by $\dot E = 10(\widehat a_y + j\widehat a_z) e^{-j25x}$. The frequency and polarization of the wave, respectively, are

  1. 1.2 GHz and left circular

  2. 4 Hz and left circular

  3. 1.2 GHz and right circular

  4. 4 Hz and right circular

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A Correct answer
Explanation

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