Consider a focused transducer with a radius of curvature of 10
cm and a diameter of 4 cm. This transducer operates at a frequency
of 3.5 MHz, and transmits a pulse of duration 0.857 μs. What is the
lateral resolution at the focal point of the transducer? The speed
of sound in the tissue is 1540 m/s.
A. 0.44 mm
B. 0.22 mm
C. 1.1 mm
D. 0.11 mm