A 3.3MegaHz ultrasound wave is used to look for objects in t…

A 3.3MegаHz ultrаsоund wаve is used tо lоok for objects in the eye, such as fragments of glass. What is the smallest fragment detectable, in millimeters, with this ultrasound, given the speed of ultrasound in tissue is 1500ms? Assume that the smallest detail visible has a size about equal to one wavelength.   Hint: v=λ⋅f→λ=vf.   1m=1000mm.