Far from their source, electromagnetic waves are
A)elliptical waves.
B)longitudinal waves.
C)plane waves.
D)spherical waves.
E)circular waves.

Name: Far from their source, electromagnetic waves are A)elliptical waves. B)longitudinal waves. C)plane waves. D)spherical waves. E)circular waves.
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Question

Quizplus · Accepted Answer

Far from their source, electromagnetic waves can be approximated as plane waves because the wavefronts become nearly flat as they propagate over large distances.

Far from Their Source, Electromagnetic Waves Are