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 |
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.
The correct answer is (B) A-IV, B-III, C-II, D-I
Let $ P_n = \alpha^n + \beta^n $, $ n \in \mathbb{N} $. If $ P_{10} = 123,\ P_9 = 76,\ P_8 = 47 $ and $ P_1 = 1 $, then the quadratic equation having roots $ \alpha $ and $ \frac{1}{\beta} $ is:
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 following are the examples of communication systems:
Turning on Signal specification or technology, the communication system is categorized as follows: