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What type of reflection occurs from a boundary when the refl…
If the beam passes from soft tissue into fat at an oblique a…
The impedance of a medium is ______
Attenuation is determined by ___
The amount of reflection at an interface of two different me…
Which of the following best describes duty factor
PRP and PRF can be changed by ___________
In pulsed ultrasound, the maximum value of the duty factor i…
The number of pulses occurring in 1 sec is called the ______…
PRF depends on (is determined by) ____________