Electromagnetic waves consist of
A)compressions and rarefactions of electromagnetic pulses.
B)vibrating electric and magnetic fields.
C)particles of light energy.
D)high-frequency gravitational waves.

Question

Quizplus · Accepted Answer

Electromagnetic waves are composed of perpendicular oscillating electric and magnetic fields that propagate through space, which is described in choice B. They do not involve compressions and rarefactions like sound waves, nor are they composed of particles of light energy (though they can be described as photons in quantum mechanics) or gravitational waves.

Electromagnetic Waves Consist of