The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by in SI units. What is the frequency of the wave

Explanation:

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by :

.....(1)

The general equation of the magnetic field wave is given by :

....(2)

Equation (1) is in form of equation (2), if we compare equation (1) and (2) we find that,

We need to find the frequency of the wave. It is given by :

So, the frequency of the wave is

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