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The piezoelectric effect can best be described as:
Mechanical deformation that results from a high voltage applied to the face of the crystal that in turn generates a pressure wave
What must be known in order to calculate distance to a reflector?
Travel time, propagation speed
What is the to the attenuation of a 3.5 -MHz pulse after passing through 2Cm of soft tissue
The attenuation coefficient of sound in soft tissue can be defined by which of the following equations?
the range equation explains:
Arrange the following media in correct order from the LOWEST attenuation to highest :
Fat , muscle, bone , air
Enhancement is caused by:
weakly attenuating structure
What is the definition of the beam uniformity ratio?
The spatial peak intensity divided by the spatial average intensity
Rayleigh Scattering is an ex of
a reflector whose size is smaller them the ware length
the correct equation for Snell's law is :
sin θt = (C2/C1) × sin θi
If the frequency doubles, what happens to the wavelength
Decreases by one half
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