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Question

Identify which of the following is NOT a characteristic of electromagnetic waves?

A
contain electrical properties
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B
have crests and troughs
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C
contain magnetic properties
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D
travel through space
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E
have crests but no troughs
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Solution

The correct option is E have crests but no troughs
Electromagnetic waves (EM) have sinusoidal electrical as well as magnetic waves at right angle to each other and the EM waves propagate through the space with a speed equal to speed of light.
Also the EM waves have both crests and troughs.

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