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Which one of the following is the process of recovering the modulated signal?

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in Physics – Class 12 by (135k points)
Which one of the following is the process of recovering the modulated signal?

(a) Amplification

(b) Detection

(c) Attenuation

(d) Transmission

The question was asked in an online interview.

My doubt is from Communication Systems in division Communication Systems of Physics – Class 12

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Best answer
Right answer is (b) Detection

Explanation: Detection is the process of recovering the modulating signal from the modulated carrier wave. The transmitted message gets attenuated in propagating through the channel. The receiving antenna is, therefore, to be followed by an amplifier and a detector. The detected signal may not be strong enough to be made use of and hence is required to be amplified.

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