The discussion focuses on calculating the Doppler frequency shift for ultrasonic waves with a frequency of 5 MHz, a target velocity of 0.1 m/s, and an angle of 60 degrees between the ultrasound beam and the flow. The relevant equation used is f = 2 * vr * fs * cos(θ) / c. The initial answer provided is correct in methodology but fails to adhere to significant digit rules, suggesting the final answer should be presented as 3 x 10² Hz due to the precision of the input values.
PREREQUISITESStudents in physics or engineering, professionals working with ultrasonic technologies, and anyone interested in the practical applications of the Doppler Effect.
Looks ok, except that it violates the usual rules of significant digits. Since the given frequency and speed have only one such the answer should be given as ##3\times 10^2##Hz. On the other hand, the question setter might not have intended that.nao113 said: