Question

RADAR works in which of the following EMR bands?

• A. Visible
• B. Radiowave
• C. Microwave
• D. Infrared

Hint:

RADAR:
- Uses microwave band (1 mm to 1 m).
- Used for remote sensing, weather monitoring, and navigation.
- Can penetrate clouds and rain.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
This question tests knowledge of the electromagnetic spectrum and RADAR technology.

Step 2: Detailed Explanation:
RADAR (Radio Detection and Ranging) works in the Microwave (C) band of the electromagnetic spectrum.
Microwaves have wavelengths ranging from 1 mm to 1 m (frequencies 300 MHz to 300 GHz).
They can penetrate clouds and are used for remote sensing and navigation.
Other bands:
- Visible (A): Used for optical remote sensing (not RADAR).
- Radiowave (B): Used for communication (longer wavelengths).
- Infrared (D): Used for thermal remote sensing (not RADAR).
Thus, RADAR works in the microwave band.

Step 3: Final Answer:
Thus, RADAR works in the microwave band, which corresponds to option (C).
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