A plane electromagnetic wave of frequency 500 MHz is travelling in vacuum along y -direction. At a particular point in space and time, B =8.0 × 10^-8…

A plane electromagnetic wave of frequency $\displaystyle 500$ MHz is travelling in vacuum along $\displaystyle y$-direction. At a particular point in space and time, $\displaystyle \overrightarrow{\mathrm{B}}=8.0 \times 10^{-8} \hat{z} \mathrm{~T}$. The value of electric field at this point is : $\displaystyle \left(\right.$ speed of light $\displaystyle \left.=3 \times 10^8 \mathrm{~ms}^{-1}\right)$ $\displaystyle \hat{x}, \hat{y}, \hat{z}$ are unit vectors along $\displaystyle x, y$ and $\displaystyle z$ directions.