(a) Identify the boxes, 'P' and 'Q' in the block diagram of a receiver shown in the figure:

CBSE Class 12 CBSE Class 12 Physics
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(a) Identify the boxes, ‘P’ and ‘Q’ in the block diagram of a receiver shown in the figure:

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(a) Here P = Intermediate Frequency Stage
Q = Detector
(b) IF Stage is used to change the carrier frequency to lower frequency.
Detector is used to recover the modulating signal from the modulated carrier wave.