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The electric field of a plane electromag...

The electric field of a plane electromagnetic wave varies with time of amplitude `2Vm^-1` propagating along z-axis. The average energy density of the magentic field is (in `Jm^-3`)

A

`13.29xx10^(-12)`

B

`8.86xx10^(12)`

C

`17.72xx10^(-12)`

D

`4.43xx10^(-12)`

Text Solution

Verified by Experts

The correct Answer is:
B
`(E_(0))/(B_(0))=c`
`U_(B)= (1)/(4) (B_(0)^(2))/(mu_(0))`
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