JEE Main 202330 JanuaryEvening Shift
- Exam
- JEE Main
- Year
- 2023
- Date
- 30 January
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Communication System
JEE Main 2023 · 30 January · Evening Shift · Physics · Communication System
Match List I with List II List I List II A Attenuation I...
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 receiver |
| 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 :
Options
- AA-I, B-II, C-III, D-IV
- BA-II, B-III, C-IV, D-I
- CA-IV, B-III, C-I, D-II
- DA-IV, B-III, C-II, D-I
Correct answer
D. A-IV, B-III, C-II, D-I
Step-by-step solution
Attenuation is the loss of signal strength in networking cables or connections.
Transducers are used in electronic communications systems to convert signals of various physical forms to electronic signals, and vice versa.
Demodulation is defined as extracting the original information-carrying signal from a modulated carrier wave.
Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction.