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EM waves are attenuated as they travel.

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in Analog Communications by (122k points)
EM waves are attenuated as they travel.

(a) True

(b) False

I have been asked this question in class test.

Origin of the question is Generation of AM Using Amplifiers in division Amplitude Modulation of Analog Communications

1 Answer

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Correct answer is (a) True

For explanation I would say: Electromagnetic radiation can travel through many forms of medium. They travel at the speed of light in air or free space, which are ideal media. However conductive media like metals form a barrier through which they do not travel. There are also some media through which when they travel, get attenuated. EM waves are attenuated as they travel because both field and power decrease as distance increases.

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