(a)[4]
Complete Table 10.1 by stating, for each wave type: - the process by which the wave is produced - whether the wave that is detected and used to form the image is the wave that has been absorbed, reflected or transmitted by the internal body structure.
(b(i))[2]
For one kind of wave travelling through tissue, the wave has $72\%$ of its original intensity after moving through $6.2\,\text{cm}$ of the tissue. Calculate the linear attenuation coefficient $\mu$ of the tissue for this wave.
(b(ii))[2]
A second wave of the same type as in part (b)(i) travels through $9.3\,\text{cm}$ of the same tissue. Calculate the percentage of the wave’s initial intensity that is attenuated by the tissue.