NEET Sample Paper NEET Sample Test Paper-16

  • question_answer When a plane electromagnetic wave travels in vacuum, the average electric energy density is given by (here \[{{E}_{0}}\]is the amplitude of the electric field of the wave)

    A) \[\frac{1}{4}{{\varepsilon }_{0}}E_{0}^{2}\]                  

    B) \[\frac{1}{2}{{\varepsilon }_{0}}E_{0}^{2}\]      

    C)      \[2{{\varepsilon }_{0}}E_{0}^{2}\]           

    D)      \[4{{\varepsilon }_{0}}E_{0}^{2}\]

    Correct Answer: A

    Solution :

    The correction option is (a).

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