Eduprobe
Question:
An em wave is propagating in a medium with a velocity →V=V^i. The instantaneous oscillating electric field of this em wave is along +y axis. Then the direction of oscillating magnetic field of the em wave will be along.
+z direction
−z direction
−y direction
−x direction
Solution:
The correct option is +z direction
Propagation of wave is in X direction = ^i
Oscillation of electric field is in y direction = ^j
So direction of magnetic field is given by = ^i × ^j = ^k
So +z direction is correct answer option 4