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An electromagnetic wave having frequency f0 gets attenuated by a factor...

This question belongs to Electronics And Communications Engineering Electromagnetic Field Theory
Electromagnetic Field Theory
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An electromagnetic wave having frequency f0 gets attenuated by a factor of e-2 after propagating a distance d in a good conductor. If the signal frequency is now reduced to 0.5 f0, after travelling the same distance d in the same conductor, the signal will get attenuated by a factor of:

Answer & Solution
Correct Answer: Option C
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