Match List I with List II: List I List II A. Attenuation I. Combination of a receiver and transmitter B. Transducer II. Process of retrieval of information from the carrier wave at received C. Demodulation III. Converts one form of energy into another D. Repeater IV. Loss of strength of a signal while propagating through a medium
Choose the correct answer from the options given below :
| List I | List II | ||
| A. | Attenuation | I. | Combination of a receiver and transmitter |
| B. | Transducer | II. | Process of retrieval of information from the carrier wave at received |
| C. | Demodulation | III. | Converts one form of energy into another |
| D. | Repeater | IV. | Loss of strength of a signal while propagating through a medium |
- A-II, B-III, C-IV, D-I
- A-IV, B-III, C-II, D-I
- A-I, B-II, C-III, D-IV
- A-IV, B-III, C-I, D-II
The Correct Option is B
Solution and Explanation
Let's analyze the terms from List I and match them with their corresponding terms in List II:
A: Attenuation
Attenuation refers to the loss of strength of a signal while propagating through a medium. This matches with option IV in List II: Loss of strength of a signal while propagating through a medium.
B: Transducer
A transducer is a device that converts one form of energy into another, typically used in sensors and receivers. This matches with option III in List II: Converts one form of energy into another.
C: Demodulation
Demodulation is the process of retrieval of information from the carrier wave at the receiver. This matches with option II in List II: Process of retrieval of information from the carrier wave at received.
D: Repeater
A repeater is a device that is a combination of a receiver and a transmitter, used to extend the range of communication signals. This matches with option I in List II: Combination of a receiver and transmitter.
Correct Matches:
- A – IV: Attenuation – Loss of strength of a signal while propagating through a medium
- B – III: Transducer – Converts one form of energy into another
- C – II: Demodulation – Process of retrieval of information from the carrier wave at received
- D – I: Repeater – Combination of a receiver and transmitter
The correct answer is (B) A-IV, B-III, C-II, D-I
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Concepts Used:
Communication Systems
A system that describes the information exchange between two points is called the communication system. The transmission and reception process of information is called communication. The major elements of communication are such as:
- The Transmitter of information
- Channel or medium of communication
- The Receiver of information
Examples Of Communication Systems:
The following are the examples of communication systems:
- Internet
- Public Switched Telephone network
- Intranet and Extranet
- Television
Types Of Communication Systems:
Turning on Signal specification or technology, the communication system is categorized as follows:
- Analog technology communicates data as electronic signals of differing frequencies or amplitude. For instance Broadcast and telephone transmission.
- In Digital technology, the data are created and processed in two states: High (represented as 1) and Low (represented as 0). Also this technology stores and transmits data in the form of 1's and 0's.
Elements of a Communication System:
