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Short note on SONAR

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Short note on SONAR

Posted by Jesika Patel 4 years, 7 months ago

CBSE > Class 09 > Science

3 answers

Mohit Mishra 4 years, 7 months ago

Sound navigation and ranging device

Yogita Ingle 4 years, 7 months ago

Sonar, short for Sound Navigation and Ranging, is a technique that uses propagation of sound waves to communicate, navigate and detect the objects on or under the surface of the water.
Working of sonar:

Sonar can send the sound waves towards the depth of the ocean
When these sound waves hit the objects like fish, vegetation or the bottom of the ocean , they are reflected back to the surface in the form of echo.
The sonar device measures how long it takes for the sound wave to travel down, hit an object and then bounce back up.
This information enables the device to to measure the depth of the object
And also it measures the strength of the returning pulse to know the the strength of the objects. The harder the objects, the stronger the return of the sound wave.

Shreyas Menon 4 years, 7 months ago

Sonar is avaliable in every boat and ship in short

ANSWER

http://mycbseguide.com/examin8/

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