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Active element diameter and beam divergence are inversely related. 

The frequency of a transducer does not change.  If the diameter of the new piezoelectric crystal increases, what happens to the wavelength? 

What is the best estimate for the resolution at 4 cm? Fig 9.4 crystal diameter(11).png

What are the 3 synonyms for lateral resolution? choose all that apply

At which of the following depths is the beam most likely to have the same diameter as it has at a depth of 11 cm? Fig 9.4 crystal diameter(7).png

What are the two methods used for focusing a mechanical transducer?  (multiple answers)

Which transducer has the lower numerical value of axial resolution?

Transducer frequency and near zone length are inversely related.

If there are more cycles in a pulse, the numerical value of  range resolution is_________.

The frequency of a transducer does not change. If the diameter of the new piezoelectric crystal increases, what happens to the near zone length?