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The depth of ocean at any place can be measured (estimated) with the help of
The depth of ocean at any place can be measured (estimated) with the help of
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Solution
The correct option is B Ultrasonic waves
The depth of an ocean is estimated by a device , called SONAR , which sends ultrasonic waves towards the bottom of ocean , and after reflection, waves come back to the sonar. The time is recorded between the emitting and the receiving waves and having the speed of waves in water , we get the depth of ocean .
The depth of an ocean is estimated by a device , called SONAR , which sends ultrasonic waves towards the bottom of ocean , and after reflection, waves come back to the sonar. The time is recorded between the emitting and the receiving waves and having the speed of waves in water , we get the depth of ocean .
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