The velocity of sound in human soft tissue is assumed to be a constant.If you employ a 7.5 MHz transducer,what is the wavelength of the sound?
A) 0.11 mm
B) 0.20 mm
C) 0.025 mm
D) 1.1 mm
Correct Answer:
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Q18: The following are all ultrasound frequencies except:
A)
Q19: Propagation speed is the speed at which
Q20: Sound requires a _ through which to
Q21: The attenuation of a 5.0 MHz transducer
Q22: Calculate the pulse duration for a 3.0
Q24: If the beam area decreases,the intensity _.
A)
Q25: The average propagation speed in human soft
Q26: For perpendicular incidence,the incidence angle is _.
A)
Q27: If beam power increases,intensity _.
A) increases
B) decreases
C)
Q28: The wavelength of 3 MHz ultrasound in
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