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Question

Ultrasonic waves are used for detecting objects under water. What is the technique/device used for this?

A
Ultrasonography
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B
Echocardiography
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C
Phakoemulsification
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D
SONAR
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Solution

The correct option is D SONAR
Sonar is the device that uses ultrasonic waves to measure the distance, direction and detecting the underwater objects.

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