Ultrasound frequency is expressed in
A) newtons (N) .
B) rads.
C) angstroms (A) .
D) hertz (Hz) .
Correct Answer:
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Q13: As an ultrasound beam travels through tissue,
Q14: Modern ultrasound machines use
A)a continuous wave of
Q15: Ultrasound frequencies are
A)inaudible.
B)not related to wavelength.
C)greater than
Q16: Sound waves behave like light waves in
Q17: The piezoelectric crystal has the potential to
Q19: In order to determine location and size
Q20: A sonogram is studied by a radiologist
Q21: The intensity of the returning echoes in
Q22: A transducer that lacks a damping material
Q23: The relationship between ultrasound beam intensity
A)and power
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