A medium is divided into regions I and II about x = 0 plane, as shown in the figure below. An electromagnetic wave with electric field E _1 = 4 a_x + 3 a_y + 5 a_z is incident normally on the interface from region-I. The electric field E _2 in region-II at the interface is

A medium is divided into regions I and II about x = 0 plane, as shown in the figure below. An electromagnetic wave with electric field $${\overrightarrow{E}}_1=4{\hat{a}}_x+3{\hat{a}}_y+5{\hat{a}}_z$$     is incident normally on the interface from region-I. The electric field $${\overrightarrow{E}}_2$$ in region-II at the interface is

Answer: Option C