A plane electromagnetic wave travels in ...

A plane electromagnetic wave travels in free space along X-direction. If the value of `vecB` (in tesla) at a particular point in space and time is `1.2 xx 10^(-8) hatk`. The value of `vecE` (in `Vm^(-1)`) at that point is

`1.2hatj`

`3.6hatk`

`1.2hatk`

`3.6hatj`

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