Question

An electromagnetic wave propagating along -z direction. If the electric field oscillates in y-axis. In which direction magnetic field will oscillates?

(1) -x axis

(2) -y axis

(3) \(\hat{y}\)

(4) \(\hat{x}\)

Answer 1

(4) \(\hat{x}\)

As K (propagation constant), E (Electric field) & B (Magnetic field) are mutually for to each other.

direction of \(\vec{B}\) is along x-axis.