SCREEN PRINTER VERSION ·BACK NEXT Chapter 17, Problem 011 Diagnostic ultrasound

Question

SCREEN PRINTER VERSION ·BACK NEXT Chapter 17, Problem 011 Diagnostic ultrasound of frequency tissue is 1330 m/s, what is the wavelength of this wave in tissue? (Take the speed of sound in air to be 343 m/s.) 3.03 MHz is used to examine turnors in soft tissue. (a) What is the wavelength in air of such a sound wave? (b) If the speed of sound in (a) Number Units (b) Number Units SHOW HINT Question Attempts: O of 5 used SAVE FOR LATER SUBMIT ANSWER meac.hlkx 2000-20182onnyiexAs ons,inc. An Rights Reserved. A Division of 2ghnRYASom.rs. erment 1 888 . 6 7 8 9 5

Explanation / Answer

here,

frequency of ultrasound wave , f = 3.03 MHz = 3.03 * 10^6 Hz

a)

speed of sound , v = 343 m/s

the wavelength in air , lamda = v/f

lamda = 343 /( 3.03 * 10^6) m

lamda = 1.13 * 10^-4 m

b)

speed of sound in tissue , v = 1330 m/s

the wavelength in tissue , lamda = v/f

lamda = 1330 /( 3.03 * 10^6) m

lamda = 4.39 * 10^-4 m

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