Which part of electromagnetic spectrum is used in radar systems ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Radar Systems:**
Radar systems are used for detecting and tracking objects such as aircraft, ships, and other vehicles. They work by emitting electromagnetic waves and analyzing the reflected waves from objects.

2. **Identifying the Electromagnetic Spectrum:**
The electromagnetic spectrum consists of various types of waves, categorized by their wavelengths and frequencies. The spectrum includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

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