The figure above shows a transmitter and a receiver of sound waves contained in a single instrument. It is used to measure the speed u of a target object (idealized as a flat plate) that is moving directly toward the unit, by analyzing the waves reflected from the target. Show that the frequency f. of the reflected waves at the receiver is related to their source frequency f, by V + u f, = fs V where v is the speed of the waves. In great many practical situations, u << v. In that case, show that the equation above becomes: f,-ts 2u V In medical diagnosis using ultrasound it is said " For every mm per second that a structure in the body moves, the incident ultrasound wave is shifted by approximately 1.30 Hz per MHz". What speed of the ultrasound waves in the tissue do you deduce from thi

The figure above shows a transmitter and a receiver of sound waves contained in a single instrument. It is used to measure the speed u of a target object (idealized as a flat plate) that is moving directly toward the unit, by analyzing the waves reflected from the target. Show that the frequency f. of the reflected waves at the receiver is related to their source frequency f, by V + u f, = fs V where v is the speed of the waves. In great many practical situations, u << v. In that case, show that the equation above becomes: f,-ts 2u V In medical diagnosis using ultrasound it is said " For every mm per second that a structure in the body moves, the incident ultrasound wave is shifted by approximately 1.30 Hz per MHz". What speed of the ultrasound waves in the tissue do you deduce from thi

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Sound Waves

Section: Chapter Questions

Problem 17.61AP: To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1 800 Hz. A friend on...

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