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The electric field in an electromagnetic...

The electric field in an electromagnetic wave is given as
`vecE` = 20 sin `omega`(t-x/c)`vecj` NC^(-1)
where `omega` and c are angular frequency and velocity of electromagnetic wave respectively.The energy contained in a volume of `5xx10^4` `m^3` will be:
(Given `epsilon`_0=`8.85xx10^(-12)` `C^2`/`Nm^2`)

A

`17.7xx10^13`J

B

`88.5xx10^13`J

C

`28.5xx10^13`J

D

`8.85xx10^13`J

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