The electric fields of two plane electromagnetic plane waves in vacuum are given by E_1= E_0 j cos (ω t - k x) and E_2= E_0 k cos (ω t - k y) At t…

The electric fields of two plane electromagnetic plane waves in vacuum are given by $$\begin{aligned} & \overrightarrow{\mathrm{E}}_1=\mathrm{E}_0 \hat{j} \cos (\omega \mathrm{t}-\mathrm{k} x) \text { and } \\ & \overrightarrow{\mathrm{E}}_2=\mathrm{E}_0 \hat{k} \cos (\omega \mathrm{t}-\mathrm{k} y) \end{aligned} $$ At $\displaystyle \mathrm{t}=0$, a particle of charge q is at origin with a velocity $\displaystyle \overrightarrow{\mathrm{v}}=0.8 \mathrm{c} \hat{j}$ (c is the speed of light in vaccum). The instantaneous force experienced by the particle is :