Which sound parameters stay the same as the beam propagates through the different tissues? please select two.

 If you increase the intensity 40dB, it means it is increasing by a factor of——–.

The diameter of a natural, unfocused sound beam at two near zone lengths is:

Two ultrasound transducers send pulses into the soft tissue; Each one pulses with 4 cycles. One transducer is 2MHZ, the other 8MHZ, which one has a greater spatial pulse length?

What is the purpose of attaching the backing material to the PZT (lead titanate zirconate)

If the round trip is 39 microsec, what is the total distance that the pulsed wave traveled?

With the pulsed wave transducer, the electrical excitation voltage of a pulsed wave transducer is 4MHZ, then the operating frequency of the transducer is —–.

Which of the following is determined by the media and source both

the time for one cycle to vibrate is one —— that——– adjustable.

With standard clinical imaging instrumentation, which has the higher numerical value?