Physics
Grade-8
Easy
Question
The SONAR can detect the enemy ship using _________.
- Ultrasound
- Infrasound
- Audible sound
- None
Hint:
Ultrasound
The correct answer is: Ultrasound
- It is based on the principle of reflection of ultrasound waves.
- SONAR (Sound navigation and ranging) is a method used in submarines and ships to detect far away objects, obstacles in water or enemy ship.
- So, the correct option is a.
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