Q. The electric and magnetic field of an electromagnetic wave are
A) in opposite phase and perpendicular to each other
B) in opposite phase and parallel to each other
C) in phase and perpendicular to each other
D) in phase and parallel to each other
Explanation
[Solution from source] In a plane EM wave, E and B oscillate in phase (both reach maxima together) and are perpendicular to each other and to the direction of propagation. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.