A plane electromagnetic wave of frequency 100 MHz is travelling in vacuum along the x -direction. At a particular point in space and time, B =2.0 ×…

A plane electromagnetic wave of frequency $\displaystyle 100$ MHz is travelling in vacuum along the $\displaystyle x$-direction. At a particular point in space and time, $\displaystyle \overrightarrow{\mathrm{B}}=2.0 \times 10^{-8} \hat{k} \mathrm{~T}$. (where, $\displaystyle \hat{k}$ is unit vector along $\displaystyle z$-direction) What is $\displaystyle \overrightarrow{\mathrm{E}}$ at this point ? (speed of light $\displaystyle \mathrm{c}=3 \times 10^8 \mathrm{~m} / \mathrm{s}$ )