A plane electromagnetic wave of frequency $25\mathrm{G}\mathrm{H}\mathrm{z}$ is propagating in vacuum along the z-direction. At a particular point in space and time, the magnetic filed is given by $\overrightarrow{B}=5\times {10}^{-8}\widehat{j}T.$ The corresponding electric field $\overrightarrow{E}$ is (speed of light $=3\times {10}^8\mathrm{m} {\mathrm{s}}^{-1}$ )

• A

  $1.66\times {10}^{-16}\widehat{i}\frac{\mathrm{V}}{\mathrm{m}}$
• B

  $-1.66\times {10}^{-16}\widehat{i}\frac{V}{m}$
• C

  $-15\widehat{i}\frac{\mathrm{V}}{\mathrm{m}}$
• Correct answer
  D

  $15\widehat{i}\frac{\mathrm{V}}{\mathrm{m}}$

Hence, the correct answer is option: 'D'.