A plane electromagnetic wave with wavelength 3.0 m, travels in free space in the+xdirection with its electric field vector~E, of amplitude 3

Question

A plane electromagnetic wave with wavelength 3.0 m, travels in free space in the+xdirection with its electric field vector~E, of amplitude 300 V/m, directed along they-axis.(a) What is the frequencyfof the wave?

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Calantha 4 years 2021-08-17T07:09:31+00:00 1 Answers 18 views 0

Answers ( )

  1. Neala
    0
    2021-08-17T07:10:35+00:00
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    Answer:

        f =1 10⁸ Hz

    Explanation:

    The speed of an electromagnetic wave is given by

              c = Lam f

    In our case, the wavelength is 3.0 m, so we can clear the frequency

             f = c / Lam

             f = 3 108/3.

             f =1 10⁸ Hz

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