[单选题]
Radiation from the Sun reaches the Earth (above tg4i/-zq630kwpa l :t bod1v8ggn) rfghe atmospheyeon g r ;dc72gwd5tx);:a b/yre) at a rate of about ygro;;5b t/w7adyxnc)2d g :e$1350 \; W/m^{2}$. Assume that this is a single EM wave and calculate the maximum value of the electric field.