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Ultrasound problem

  1. Apr 14, 2005 #1
    The smallest object which can be resolved with a given frequency of ultrasound in a diagnostic scanner is on the order of the wavelength of ultrasound used. If 20 mhz ultrasound is used for a scan of the eye, and the speed oft the wave is 1500 m/sec, how small an object could be detected in the eye? Do I use the equation P(4(pie)r squared) to find the answer?
  2. jcsd
  3. Apr 14, 2005 #2
    Make use of [tex]\lambda = \frac{v}{f}[/tex]
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