Sound, ultrasound and infrasound

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Question 3
Easy

An autonomous underwater vehicle (AUV) maps the seabed using active sonar.

Figure 1 shows the AUV transmitting an ultrasound pulse down to a flat section of the ocean floor.

An autonomous underwater vehicle (AUV) using active sonar to find the distance, d, to the seabed.

The sound waves reflect off the seabed and are received back at the AUV's sonar transducer.

The speed of sound in seawater is 1520 m/s.

The time between the transmission of the pulse and its detection is 85 milliseconds.

Calculate the distance, ddd, from the AUV to the seabed.

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Sound, ultrasound and infrasound Questions

  1. GCSE
  2. /Physics
  3. /Sound, ultrasound and infrasound