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A SONAR (sound navigation and ranging) uses ultrasonic waves to detect and locate objects underwater. In a submarine equipped with a SONAR the time delay between generation of a probe wave and the reception of its echo after reflection from an enemy submarine is found to be 77.0s . What is the distance of the enemy submarine? (Speed of sound in water = 1450ms−1).

A SONAR (sound navigation and ranging) uses ultrasonic waves to detect and locate objects underwater. In a submarine equipped with a SONAR the time delay between generation of a probe wave and the reception of its echo after reflection from an enemy submarine is found to be 77.0s
. What is the distance of the enemy submarine? (Speed of sound in water = 1450ms−1).

Grade:12th pass

2 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
3 months ago
Our expert is working on this Class IX Science answer. We will update the answer very soon.
Yash Patari
askIITians Faculty 2123 Points
3 months ago
A SONAR (sound navigation and ranging) uses ultrasonic waves to detect and locate objects underwater. In a submarine equipped with a SONAR the time delay between generation of a probe wave and the reception of its echo after reflection from an enemy submarine is found to be 77.0s. 

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