A plane electromagnetic wave of frequenc...

A plane electromagnetic wave of frequency `50 MHz` travels in free space along the positive x-direction. At a particular point is space and time, `vec(E)=6.3hatjV//m.` The corresponding magnetic field`hatB`, at that point wiil be:

`18.9xx10^(-8)hatkT`

`2.1xx10^(-8)hatkT`

`6.3xx10^(-8)hatkT`

`18.9xx10^(8)hatkT`

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