Physics
Grade-8
Easy

Question

The sonar can detect the enemy ship using _________.

  1. Ultrasound
  2. Infra sound
  3. Audible sound
  4. None

hintHint:

Ultrasound

The correct answer is: Ultrasound


    • SONAR sends ultrasound waves and detects the waves after they reflect from underwater objects.
    • Therefore, it can detect enemy ship by using ultrasound.
    • SONAR stands for sound navigation and ranging.
    • So, the correct option is a.

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