Match List - I with List - II List-IList-II(A) Range(I) Range of frequencies over which communication system works(B) Band width(II) The largest distance between transmitter and receiver(C) Attenuation(III) Loss of strength of a signal during propagation(D) Transducer(IV) A device that receives an input in electrical form or provides an output in electrical formChoose the correct answer from the options given below:

Question

Prepp Team · Accepted Answer

Matching Communication System Terms and Definitions

This question asks us to match terms related to communication systems from List-I with their corresponding descriptions or definitions from List-II. Let's carefully examine each term and its potential match based on common understanding in communication systems.

Understanding Communication System Terminology

We need to find the correct pairing for each term in List-I:

(A) Range: In the context of communication systems, range refers to the maximum distance over which effective communication can take place between a transmitter and a receiver. Looking at List-II, statement (II) "The largest distance between transmitter and receiver" directly corresponds to the definition of Range.
(B) Band width: Bandwidth in communication refers to the range of frequencies within a band that is used for transmitting a signal. Statement (I) in List-II, "Range of frequencies over which communication system works", accurately describes Bandwidth.
(C) Attenuation: Attenuation is the reduction in the strength of a signal as it propagates through a medium or space. Statement (III) "Loss of strength of a signal during propagation" is the standard definition of Attenuation. However, we must match based on the provided options. Let's check how the options pair Attenuation.
(D) Transducer: A transducer is a device that converts energy from one form to another. In communication systems, transducers often convert sound waves into electrical signals (like a microphone) or electrical signals into sound waves (like a speaker). Statement (IV) "A device that receives an input in electrical form or provides an output in electrical form" describes a device interacting with electrical signals, which aligns broadly with how transducers function within electrical circuits in communication systems, though not a complete definition of energy conversion. However, we must match based on the provided options. Let's check how the options pair Transducer.

Now, let's analyze the provided options to see how the terms from List-I are paired with statements from List-II:

List-I (Term)	List-II (Description/Definition)	Standard Match
(A) Range	(II) The largest distance between transmitter and receiver	Match
(B) Band width	(I) Range of frequencies over which communication system works	Match
(C) Attenuation	(III) Loss of strength of a signal during propagation	Standard Match
(D) Transducer	(IV) A device that receives an input in electrical form or provides an output in electrical form	Plausible Match (Electrical Interface)

Based on the standard definitions:

(A) Range matches (II)
(B) Band width matches (I)
(C) Attenuation matches (III)
(D) Transducer matches (IV)

This gives us the mapping (A)-(II), (B)-(I), (C)-(III), (D)-(IV).

Analyzing the Matching Options

Let's look at the given options for the correct combination:

(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
(A)-(IV), (B)-(II), (C)-(III), (D)-(I)

Comparing our standard mapping (A)-(II), (B)-(I), (C)-(III), (D)-(IV) with the options:

Option 1 has (A)-(III), which is incorrect.
Option 2 has (A)-(II) and (B)-(I), which match our standard. It then pairs (C)-(IV) and (D)-(III). This is different from the standard (C)-(III), (D)-(IV).
Option 3 has (A)-(I), which is incorrect.
Option 4 has (A)-(IV), which is incorrect.

The only option that starts with the correct standard matches for (A) and (B) is Option 2. Following the mapping provided in Option 2:

(A) Range is matched with (II) The largest distance between transmitter and receiver. This is a correct definition of Range.
(B) Band width is matched with (I) Range of frequencies over which communication system works. This is a correct definition of Bandwidth.
(C) Attenuation is matched with (IV) A device that receives an input in electrical form or provides an output in electrical form.
(D) Transducer is matched with (III) Loss of strength of a signal during propagation.

Thus, based on the provided options, the correct matching is (A)-(II), (B)-(I), (C)-(IV), (D)-(III).

Correct Matching Summary

Based on the analysis of the options, the correct pairings are:

List-I	List-II
(A) Range	(II) The largest distance between transmitter and receiver
(B) Band width	(I) Range of frequencies over which communication system works
(C) Attenuation	(IV) A device that receives an input in electrical form or provides an output in electrical form
(D) Transducer	(III) Loss of strength of a signal during propagation

Revision Table: Communication System Terms

Here's a table summarizing the terms from the question and their standard definitions, which is helpful for revision.

Term	Standard Definition
Range	The maximum distance over which communication is effective.
Bandwidth	The range of frequencies used for transmission or operation of a system.
Attenuation	The reduction in signal strength during propagation.
Transducer	A device that converts energy from one form to another (e.g., sound to electrical, electrical to light).

Additional Information on Communication Concepts

Let's delve a little deeper into these key communication system concepts:

Range in Communication: Range is influenced by factors like transmitter power, antenna characteristics, signal frequency, and the presence of obstacles or interference. A longer range generally requires more power or a more sensitive receiver.
Bandwidth Importance: Bandwidth is crucial because it determines the data-carrying capacity of a communication channel. Higher bandwidth allows for faster data transmission rates or more complex signals (like video). Different communication technologies utilize different bandwidths, e.g., radio broadcasting, Wi-Fi, and fiber optics each operate over distinct frequency ranges.
Understanding Attenuation: Attenuation is a fundamental phenomenon in all communication media, including wires, optical fibers, and the atmosphere. It leads to a weaker signal arriving at the receiver, which can affect the quality and reliability of communication. Compensation techniques, like amplification or signal regeneration, are used to counteract attenuation.
Transducers in Systems: Transducers are interface devices. Examples include microphones (sound to electrical), speakers (electrical to sound), antennas (electrical to electromagnetic waves and vice-versa), and sensors (physical quantity to electrical signal). Statement (IV) in List-II, while not a full definition of energy conversion, captures the electrical input/output aspect common to many transducers in electrical communication circuits. Statement (III) in List-II, "Loss of strength...", is the definition of Attenuation, not Transducer.

Matching questions like this test your understanding of core definitions within a subject area. It's important to know the standard definitions but also be able to select the best fit among the options provided in the question.