Problem:

concave mirror

$e^{-}$

Whet are the $x$ and $Y$ components of the vec$(E)$ field felt by the election due to it's $($t$)$ reflection?

Look at the pictures for better explanation

Use tens equn to find $x_i$

Use magnification equan to find $y_i$vec$(r{)}_i=(\frac{x_i}{y_i})$

Find vec$(r{)}_e-$vec$(r{)}_i$ and $|vec(r{)}_e-$vec$(r{)}_i{|}^3$

Plus in all tosether to Find vec$(E)=(\frac{E_x}{E_y})$