Physics for IGCSE & O level - Rays And Waves (Section 11 - No. 5)
In which direction do electromagnetic waves travel?
In the direction of the electric field.
In the direction of the magnetic field.
In the direction of both electric and magnetic field oscillations, perpendicular to both.
In the direction of neither electric nor magnetic fields.
解释
Electromagnetic waves travel perpendicular to both the oscillating electric and magnetic fields.