Solution)
Here, frequency f= fo(v+vb/v-vb)
We know, speed of sound in blood is 1540 m/s
F= 5.2*10^6(1540+ 0.18/1540-0.18)
F= 5.201215 Mhz
Frequency shift, delta F= F-Fo
Delta F= (5.201215 )- (5.2)=0.001215 MHz = 1.21 * 10^3 Hz (Ans)
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