Question:
The electromagnetic waves used in radar systems for aircraft navigation are
The electromagnetic waves used in radar systems for aircraft navigation are
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Don't let the name RADAR (which contains "Radio") trick you! While microwaves are technically a high-frequency subset of radio waves, in the context of specific EM spectrum questions, "Microwaves" is the more accurate and expected answer for Radar systems.
Updated On: Apr 24, 2026
- Infrared waves
- Ultraviolet waves
- Microwaves
- X-rays
- Radio waves
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The Correct Option is C
Solution and Explanation
Concept:
Physics - Electromagnetic Spectrum and Applications.
Step 1: Understand Radar requirements.
Radar (Radio Detection and Ranging) systems require waves that can travel long distances, reflect off metallic objects (like aircraft), and have short enough wavelengths to provide good resolution for detecting specific objects.
Step 2: Analyze Microwaves.
Microwaves have frequencies in the range of 1 GHz to 300 GHz. Because of their shorter wavelengths compared to standard radio waves, they can be focused into narrow beams.
Step 3: Explain the benefit.
Narrow beams are essential for determining the precise direction and distance of an aircraft. Furthermore, microwaves are not easily reflected by the ionosphere, allowing them to pass through the atmosphere effectively.
Step 4: Conclusion.
Due to their ability to be focused into directional beams and their reflective properties, microwaves are the standard choice for radar navigation.
Physics - Electromagnetic Spectrum and Applications.
Step 1: Understand Radar requirements.
Radar (Radio Detection and Ranging) systems require waves that can travel long distances, reflect off metallic objects (like aircraft), and have short enough wavelengths to provide good resolution for detecting specific objects.
Step 2: Analyze Microwaves.
Microwaves have frequencies in the range of 1 GHz to 300 GHz. Because of their shorter wavelengths compared to standard radio waves, they can be focused into narrow beams.
Step 3: Explain the benefit.
Narrow beams are essential for determining the precise direction and distance of an aircraft. Furthermore, microwaves are not easily reflected by the ionosphere, allowing them to pass through the atmosphere effectively.
Step 4: Conclusion.
Due to their ability to be focused into directional beams and their reflective properties, microwaves are the standard choice for radar navigation.
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