A SONAR device uses ultrasound to find out the average depth of the Ca – InterviewSolution

1.	A SONAR device uses ultrasound to find out the average depth of the Caspian Sea. The sound of wavelength 10 mm and frequency 150 kHz, reflects back to the device in about 1.4 s. What is the depth of the sea in km?1.05
Answer» A SONAR device uses ultrasound to find out the average depth of the Caspian Sea. The sound of wavelength $10 mm$ and frequency $150 kHz$ , reflects back to the device in about $1.4 s$ . What is the depth of the sea in $km$ ? 1.05

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