An electromagnetic wave going through vacuum is described by $\mathrm{E}={\mathrm{E}}_0\sin (\mathrm{kx}-\mathrm{\omega t}); \mathrm{B}={\mathrm{B}}_0\sin (\mathrm{kx}-\mathrm{\omega t})$ Which of the following equations is true?

• A

  ${\mathrm{E}}_0\mathrm{k}={\mathrm{B}}_0\mathrm{\omega }$

• B

  ${\mathrm{E}}_0\mathrm{\omega }={\mathrm{B}}_0\mathrm{k}$

• C

  ${\mathrm{E}}_0{\mathrm{B}}_0=\mathrm{\omega k}$

• D

  None of these