Question

4.) Suppose you are a sonographer using diagnostic ultrasound. Estimate the speed of ultrasound in typical soft tissue at a temperature of 37 ^o C (this is normal internal human body tissue). Another excellent physics book used to train medical sonographers: Kremkau, Frederick W. Diagnostic Ultrasound: Principles and Instruments

a.) 15400 m/s

b.) 1540 m/s

c.)    1.54 mm/µs

d.) both (b.) and (c.)

                                                                                                                        Answer __________

5.) Which of the following relationships is most correct (v = velocity of sound at room temperature, and subscript denotes the medium)? Use your results from the previous questions to determine your answer.

a.)    v_water    <     v_air      <    v_steel

b.)    v_air       <      v_steel    <    v_water

c.)    v_steel     <     v_air      <    v_water

d.)    v_air       <    v_water    <    v_steel   

Answer 1