If the propagation speed of the transducer element material is 6 mm/µs,the operating frequency for a thickness of 0.2 mm is ______ MHz.
A) 15
B) 30
C) 12
D) 7.5
Correct Answer:
Verified
Q10: Another name for the Fresnel zone is
Q11: The linear image consists of _ scan
Q12: Sequenced,phased,and vector are types of _.
A) transducers
B)
Q13: Lateral resolution is equal to _.
A) wavelength/2
B)
Q14: Arrays are operated in two ways,called _
Q16: Factors determining axial resolution are the _.
A)
Q17: Which of the following frequencies is operated
Q18: At a distance of two near-zone lengths,the
Q19: Coupling medium is applied to the transducer-tissue
Q20: Electric _ applied to a transducer are
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