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You are a sonographer, and you want to use the best available single-element
transducer to image the fetus head which is about 10 cm away from the
mother’s skin. The optimal transducer diameter to use at frequency 6.15 kHz is:
a. 5 mm
b. 7 mm
c. 10 mm
d. 15 mm

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ou are a sonographer, and you want to use the best available single-element transducer to image the fetus head which is about 10 cm away from the mother’s skin. The optimal transducer diameter to use at frequency 6.15 kHz is: a. 5 mm b. 7 mm c. 10 mm d. 15 mm