For the plane electromagnetic wave given by $\mathrm{E}=\mathrm{E}_0 \sin (\omega \mathrm{t}-\mathrm{kx})$ and $\mathrm{B}=\mathrm{B}_0 \sin (\omega \mathrm{t}-\mathrm{kx})$, the ratio of average electric energy density to average magnetic energy density is

  • [JEE MAIN 2023]
  • A

    $1$

  • B

    $\frac{1}{2}$

  • C

    $2$

  • D

    $4$

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