Answered: If an ultrasound from a SONAR goes from…

If an ultrasound from a SONAR goes from water to air, the speed of ultrasound will: a. increase b. no change C. always 331 m/s d. decrease

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter17: Physics Of Hearing

Section: Chapter Questions

Problem 74PE: Find the sound intensity level in decibels of 2.00102W/m2 ultrasound used in medical diagnostics.

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Concept explainers

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.

Question

If an ultrasound from a SONAR goes from
water to air, the speed of ultrasound will:
a. increase
b. no change
c. always 331 m/s
d. decrease

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