A plane electromagnetic wave travels in free space along the x-direction. The electric field component of the wave at a particular point of space and time is E=6 Vm−1 along y-direction. Its corresponding magnetic field component, B would be:
(1) 2×10−8 T along z -direction
(2) 6×10−8 T along x -direction
(3) 6×10−8 T along z -direction
(4) 2×10−8 T along y -direction