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Which among the following waves is used for communication by artificial satellites?  
  • a)
    Micro waves  
  • b)
    Radio waves  
  • c)
    A. M.  
  • d)
    Frequency of 1016 series
Correct answer is option 'A'. Can you explain this answer?
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Which among the following waves is used for communication by artificia...
For fixed (point-to-point) services, communications satellites provide a microwave radio relay technology complementary to that of communication cables. They are also used for mobile applications such as communications to ships, vehicles, planes and hand-held terminals, and for TV and radio broadcasting. Microwave technology is extensively used for point-to-point telecommunications (i.e., non broadcast uses). 
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Which among the following waves is used for communication by artificia...
Communication by Artificial Satellites

Introduction:
Artificial satellites play a crucial role in modern communication systems. They are used for various purposes, including communication, weather monitoring, navigation, and scientific research. In the context of communication, artificial satellites rely on specific types of waves to transmit signals between the satellite and the ground station. Among the given options, micro waves are used for communication by artificial satellites.

Explanation:
1. Micro waves:
Micro waves are a type of electromagnetic waves with wavelengths ranging from one millimeter to one meter. They are commonly used for communication purposes due to their ability to easily penetrate the Earth's atmosphere and their high bandwidth. Artificial satellites use micro waves for long-distance communication with ground stations.

Advantages of Micro waves:
- High Bandwidth: Micro waves have a high bandwidth, which means they can carry a large amount of information simultaneously.
- Low Atmospheric Absorption: Micro waves are not significantly absorbed by the Earth's atmosphere, allowing them to travel long distances without significant signal loss.
- Directivity: Micro waves can be focused in a specific direction, allowing for efficient communication between the satellite and ground stations.
- Low Interference: Micro waves are less susceptible to interference from other sources, making them ideal for reliable communication.

2. Radio waves:
Radio waves are also a type of electromagnetic waves, but they have longer wavelengths compared to micro waves. While radio waves are used for various communication purposes, they are not commonly used for communication by artificial satellites. Radio waves are typically used for terrestrial communication, such as AM and FM radio broadcasts.

3. A. M. (Amplitude Modulation):
AM is a modulation technique used in radio broadcasts, where the amplitude of the carrier wave is varied to transmit information. While AM is a form of radio wave communication, it is not specifically used for communication by artificial satellites.

4. Frequency of 1016 series:
The frequency of 1016 series does not correspond to any specific type of wave used for communication. It is not a recognized frequency band for communication purposes.

Conclusion:
In summary, artificial satellites use micro waves for communication with ground stations. Micro waves offer advantages such as high bandwidth, low atmospheric absorption, directivity, and low interference, making them ideal for long-distance communication. Radio waves, including AM, are not commonly used for satellite communication. The frequency of 1016 series does not correspond to any specific wave used for communication.
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Which among the following waves is used for communication by artificial satellites? a)Micro waves b)Radio waves c)A. M. d)Frequency of 1016 seriesCorrect answer is option 'A'. Can you explain this answer?
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