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Physics Doppler Exam Practice Questions and Answers

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Physics Doppler Exam Practice Questions and Answers Doppler Effect - ANSWER-An apparant change in frequency as a result of a change in wavelength caused by motion relative to observer Proportional - ANSWER-What is the relationship between doppler shifted frequency and velocity? Doppler Shift -...

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Physics Doppler Exam Practice Questions

and Answers


Doppler Effect - ANSWER✔✔-An apparant change in frequency as a result of a change in wavelength

caused by motion relative to observer


Proportional - ANSWER✔✔-What is the relationship between doppler shifted frequency and velocity?


Doppler Shift - ANSWER✔✔-Difference in frequency between the frequency that was transmitted and

frequency that was received.


Detected frequency is lower than transmitted frequency - ANSWER✔✔-What results in a negative

doppler shift?


Detected frequency is higher than transmitted frequency - ANSWER✔✔-What results in a positive

doppler shift?


1-10kHz or 20-20,000 Hz - ANSWER✔✔-What is the normal range of doppler shift?


Proportional - ANSWER✔✔-What is the relationship between doppler shifted frequency and

transmitted(operating) frequency?


Inversely proportional - ANSWER✔✔-What is the relationship between doppler shifted frequency and

propagation velocity?


Fdop= 2fovcos /c - ANSWER✔✔-What is the Doppler Equation?


CW, PW, Color Doppler - ANSWER✔✔-What are the 3 standard doppler modalities?

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, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024


Spontaneous contrast - ANSWER✔✔-Increase reflectivity results in ability to visualize blood


0 degrees; shift - ANSWER✔✔-Blood flow is directed towards transducer. What is the angle and

doppler shift?


180 degrees; shift - ANSWER✔✔-Blood flow is directly away from the transducer. What is the angle

and doppler shift?


shift - ANSWER✔✔-The angle formed between the flow direction and the steered doppler line is 30

degrees and traveling closer towards transducer. What is the doppler shift?


shift - ANSWER✔✔-The angle formed between the flow direction and the steered doppler line is 150

degrees and traveling away from transducer. What is the doppler shift?


90 degrees - ANSWER✔✔-What angle results in no doppler shift?


Specular reflectors - ANSWER✔✔-This causes extremely high amplitude signals, but low doppler

frequency


Wider - ANSWER✔✔-In wall filer effect, the higher the filter # the _____ black band.


< 25-50 Hz - ANSWER✔✔-Typical wall filter setting for venous flow.


50-100 Hz - ANSWER✔✔-Typical wall filter setting for arterial flow.


Saturation - ANSWER✔✔-When the clutter signals are not adequately reduced by the wall filters, this

occurs.


X: time


Y: frequency shift (velocity)



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