Arrange the elements 1, 2, 3 and 4 of the generalized communication s…

The correct answer is Option (2) → B, D, A, C

In a communication system the message starts at its source, is converted and sent out by a transmitter, travels through the channel, and is picked up and passed on at the other end.

    Element 1: Information source (B) — produces the message
    Element 2: Transmitter (D) — converts the message into a form suitable for the channel and sends it
    Channel — the medium carrying the signal
    Element 3: Receiver (A) — picks up the signal from the channel and recovers the message
    Element 4: User of information (C) — the final destination of the message

So the order is B, D, A, C.

Note: This question is from the pre-rationalised NCERT book (2022-23). The topic was removed from the latest NCERT book (2026-27), and it also appears to be out of the CUET 2026 syllabus.

NCERT (Pre-rationalised edition, 2022-23):
Elements of a Communication System – “… The purpose of the transmitter is to convert the message signal produced by the source of information into a form suitable for transmission through the channel. … The receiver has the task of operating on the received signal. It reconstructs a recognisable form of the original message signal for delivering it to the user of information.”