Question:
The region that cannot be used in the Remote Sensing application is
The region that cannot be used in the Remote Sensing application is
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Remote sensing detects energy that the Earth's surface reflects or emits in specific parts of the electromagnetic spectrum, and only certain regions carry useful surface information through the atmosphere.
Updated On: Jun 16, 2026
- Visible region
- Radio waves region
- Infrared region
- Microwave region
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The Correct Option is B
Solution and Explanation
Concept:
Remote sensing detects energy that the Earth's surface reflects or emits in specific parts of the electromagnetic spectrum, and only certain regions carry useful surface information through the atmosphere.
Step 1:
The visible region records reflected sunlight, the infrared region records reflected and emitted thermal energy, and the microwave region is used by radar and passive microwave sensors that penetrate clouds. All three are standard remote sensing windows.
Step 2:
The radio wave region has very long wavelengths that do not provide useful reflectance or emission information about Earth surface features for imaging, so it is not used in conventional remote sensing applications.
Answer: Option (2) — Radio waves region.
Remote sensing detects energy that the Earth's surface reflects or emits in specific parts of the electromagnetic spectrum, and only certain regions carry useful surface information through the atmosphere.
Step 1:
The visible region records reflected sunlight, the infrared region records reflected and emitted thermal energy, and the microwave region is used by radar and passive microwave sensors that penetrate clouds. All three are standard remote sensing windows.
Step 2:
The radio wave region has very long wavelengths that do not provide useful reflectance or emission information about Earth surface features for imaging, so it is not used in conventional remote sensing applications.
Answer: Option (2) — Radio waves region.
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