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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 areA. `4.3xx10^(-7) Jm^(-3)`, `2.15xx10^(-7) Jm^(-3)`B. `4.3xx10^(-7) Jm^(-3)`, `8.6xx10^(-7) Jm^(-3)`C. `2.15xx10^(-7) Jm^(-3)`, `4.3xx10^(-7) Jm^(-3)`D. `8.6xx10^(-7) Jm^(-3)`, `4.3xx10^(-7) Jm^(-3)` |
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Answer» Correct Answer - B `(U_(av))_(E)=(1)/(2)epsilon_(0)E_(max)^(2)`, `U_(av)=epsilon_(0)E_(max)^(2)` |
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