What is 'SONAR'? State the principle on which it is based.

Question

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The word 'SONAR' stands for Sound navigation and ranging. The figure given below shows the principle of a SONAR in which, ultrasonic waves are sent in sea water in all directions, from the ship. These waves are received after reflection from an obstacle such as the enemy submarine, iceberg, sunken ship etc. Hence, the distance between the ship and the obstacle can be determined.

What is SONAR? State the principle on which it is based. Sound, Concise Physics Solutions ICSE Class 10.

To find the distance of obstacle from the ship the time interval (t) between the instant when waves are sent and the instant when waves are received, after reflection from the obstacle is measured. The distance d of the obstacle from the source is then where, V is the speed of ultrasonic wave in water. The depth of sea can also be found by this method. The process is then called echo depth sounding.

Physics

What is 'SONAR'? State the principle on which it is based.

Sound

Related Questions

What is meant by sound ranging? Give one use of sound ranging.

Name the waves used for sound ranging. State one reason for their use. Why are the waves mentioned by you not audible to us?

State the use of echo in medical field.

The wavelength of waves produced on the surface of water is 20 cm. If the wave velocity is 24 ms^-1, calculate (i) the number of waves produced in one second and (ii) the time in which one wave is produced.

Physics

What is 'SONAR'? State the principle on which it is based.

Sound

Related Questions

What is meant by sound ranging? Give one use of sound ranging.

Name the waves used for sound ranging. State one reason for their use. Why are the waves mentioned by you not audible to us?

State the use of echo in medical field.

The wavelength of waves produced on the surface of water is 20 cm. If the wave velocity is 24 ms-1, calculate (i) the number of waves produced in one second and (ii) the time in which one wave is produced.

The wavelength of waves produced on the surface of water is 20 cm. If the wave velocity is 24 ms^-1, calculate (i) the number of waves produced in one second and (ii) the time in which one wave is produced.