Sagot :
✏️ Question
====================================
Which of the following statement describe electromagnetic waves?
A. They have mass.
B. They are transverse waves.
C. They require a medium to propogate.
D. They travel at varying speeds through a vacuum.
====================================
✏️ Answer
====================================
Which of the following statement describe electromagnetic waves?
A. They have mass.
B. They are transverse waves.
C. They require a medium to propogate.
D. They travel at varying speeds through a vacuum.
ANSWER: D. They travel at varying speeds through a vacuum.
====================================
✏️ Explanation
====================================
Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.
In physics, electromagnetic radiation consists of waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays. All of these waves form part of the electromagnetic spectrum.