Part A : The frequency shift of ultrasound reflected from blood which will be given by -
f = 2 v f / c
where, c = speed of blood = 1540 m/s
v = speed of blood in an artery = 0.25 m/s
f = frequency emitted by blood flow = 4.8 x 106 Hz
then, we get
f = [2 (0.25 m/s) (4.8 x 106 Hz)] / (1540 m/s)
f = [(2.40 x 106 m/s2) / (1540 m/s)]
f = 1558.4 Hz
converting Hz into kHz :
f 1.56 kHz
Need some help please! TIA pler blood flow unit emits ultrasound at 4.8 MHz What is...
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