An electromagnetic wave travelling in x -direction is described by field equation E_y=300 sin ω(t-x/c). If the electron is restricted to move in y…

An electromagnetic wave travelling in $\displaystyle x$-direction is described by field equation $\displaystyle \mathrm{E}_y=300 \sin \omega\left(t-\frac{x}{\mathrm{c}}\right)$. If the electron is restricted to move in $\displaystyle y$-direction only with speed of $\displaystyle 1.5 \times 10^6 \mathrm{~m} / \mathrm{s}$ then ratio of maximum electric and magnetic forces acting on the electron is $\displaystyle \_\_\_\_$.