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The rms value of electric field of a plane electromagnetic wave is 314V//m.The average energy density of electric field and the average energy density are

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Answer Text

`4.3xx10^(-7) Jm^(-3)`, `2.15xx10^(-7) Jm^(-3)``4.3xx10^(-7) Jm^(-3)`, `8.6xx10^(-7) Jm^(-3)``2.15xx10^(-7) Jm^(-3)`, `4.3xx10^(-7) Jm^(-3)``8.6xx10^(-7) Jm^(-3)`, `4.3xx10^(-7) Jm^(-3)`

Answer :
B
Solution :
`(U_(av))_(E)=(1)/(2)epsilon_(0)E_(max)^(2)`, `U_(av)=epsilon_(0)E_(max)^(2)`

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