Question

question 13 of 25
what is the relationship between the magnetic and electric fields along the path of a moving electromagnetic wave?
a. they vibrate at different times.
b. they form a right angle with each other.
c. the angle between them varies as the wave moves.
d. they form a 180° angle with each other.

Explanation:

In an electromagnetic wave, the electric field (\(E\)) and magnetic field (\(B\)) are perpendicular to each other. They also both are perpendicular to the direction of wave propagation. This is a fundamental property of electromagnetic waves. Option A is incorrect as they vibrate in - phase (not at different times). Option C is wrong because the angle between them is always \(90^{\circ}\) (a right - angle) and does not vary. Option D is incorrect since \(180^{\circ}\) would mean they are parallel (in opposite directions), which is not the case for \(E\) and \(B\) fields in an electromagnetic wave.

Answer:

B. They form a right angle with each other.