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प्रश्न
Answer briefly.
What is meant by noise?
टीपा लिहा
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उत्तर
- A random unwanted signal is called noise.
- The source generating the noise may be located inside or outside the system.
- Efforts should be made to minimize the noise level in a communication system.
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Communication System
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Electromagnetic Waves and Communication System - Exercises [पृष्ठ २४१]
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संबंधित प्रश्न
Choose the correct option.
The waves used by artificial satellites for communication purposes are
Answer briefly.
Name the three basic units of any communication system.
Answer briefly.
What is meant by bandwidth?
Answer briefly.
Explain the necessity of a carrier wave in communication.
Solve the numerical problem.
A transmitting antenna at the top of a tower has a height of 32 m and that of the receiving antenna is 50 m. What is the maximum distance between them for satisfactory communication in line of sight mode? The given radius of Earth is 6.4 × 106 m.
Which of the following device is an example of point-to-point communication mode?
