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Question
Sonar is an instrument used for finding the depth of sea. State true or false.
Sonar is an instrument used for finding the depth of sea. State true or false.
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Solution
The correct option is A True
Sonar or SOund Navigation And Ranging makes use of an echo. It sends sound wave under the sea which after hitting the bed of the sea gets reflected back. It calculates the depth of the sea by measuring the time taken.
The speed of sound in water is known, so the distance can be calculated from speed and time by multiplying them.
The distance is divided by 2 to find the depth of the seabed.
Sonar or SOund Navigation And Ranging makes use of an echo. It sends sound wave under the sea which after hitting the bed of the sea gets reflected back. It calculates the depth of the sea by measuring the time taken.
The speed of sound in water is known, so the distance can be calculated from speed and time by multiplying them.
The distance is divided by 2 to find the depth of the seabed.
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