A sonar uses ultrasonic sound waves to detect and locate objects underwater. It works by emitting sound pulses and then detecting the echoes that bounce back from objects to determine their distance, direction, and speed.
A sonar uses:
Review the verified answer and explanation for this ETEA Educational Testing and Evaluation Agency past-paper question on CampusFin.
Question context
This question is part of 💻 Computing within the broader 💾 Computer Science subject and appears in the ETEA Educational Testing and Evaluation Agency preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.