Which of the following best describes why we say that light is an electromagnetic wave?
A) The passage of a light wave can cause electrically charged particles to move up and down.
B) Light can be produced only by electric or magnetic appliances.
C) Light is produced only when massive fields of electric and magnetic energy collide with one another.
D) The term electromagnetic wave arose for historical reasons, but we now know that light has nothing to do with either electricity or magnetism.
Correct Answer:
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