Question

How are the oscillating magnetic and electric fields of an electromagnetic wave positioned relative to each other?​

A) They are parallel to each other.
B) The magnetic field is rotated 45° from the electric field
C) the electric field is rotated 45° from the magnetic field.
D) They are perpendicular to each other​

Answer 1

D.

for the scalar product between two vectors to be 0 either one of thm is zero vector or they are perpendicular to each other