Question: Q. 2. Explain the terms (i) Attenuation and (ii) Demodulation used in communication system.
R [Delhi I, II, III 2016]
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Solution:
Ans. (i) The loss of strength of a signal while propagating through a medium.
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(ii) The process of retrieval of information, from the modulated wave, at the receiver.
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[CBSE Marking Scheme, 2016]