Name the wave used in sonar. Give reason to your answer.

Explanation

**Step-by-Step Solution:**

1. **Identify the type of wave used in sonar:**
- The wave used in sonar (Sound Navigation and Ranging) is ultrasonic waves.

2. **Explain why ultrasonic waves are used in sonar:**
- **High Frequency:** Ultrasonic waves have very high frequencies, which allows them to travel long distances in water without being absorbed significantly. This property is essential for sonar to detect objects or measure distances underwater.
- **Less Interference:** Ultrasonic waves are not confused with other noises, particularly engine noises, because they are above the range of human hearing. This ensures that the sonar system can accurately detect and interpret the signals without interference from background sounds.
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