Question

a plane electromagnetic wave travels vacuum along Z Direction What can you say about the direction of electric and magnetic field vectors​.​.​

Answer 1

Direction of electricala nd magnetic field are perpendicular to direction of propagation of wave. Thus, direction of electric field vector would be in x or y direction and similarly direction of magnetic field vector will be in y or x direction other than that of electric field

Tldr: all three will be in diff directions