The electric and magnetic fields associated with an electromagnetic wave propagating along +z axis, can be represented by

Step-by-step solution

An electromagnetic wave propagates in the direction of the vector E B . The direction of propagation is given as the +z axis, which corresponds to the unit vector k . We check the cross products for the given options: For option (FLnIo): i j = k . This satisfies the condition for propagation along the +z axis. For option (v7vEs): i k = - j . This does not propagate along the +z axis. For option (Swd2S): k j = - i . This does not propagate along the +z axis. For option (pyQrQ): j k = i . This does not propagate alon