e="5" src="images/example_tvsp_snells_law_01.png" style="width:286px;height:205px;" alt=""> 

<p>The angle of the incident and reflected waves will be identical, and the angle of the transmitted wave 
will vary according to</p>

<p>&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp<img src="images/example_tvsp_snells_law_eq_01.gif" style="width:90px;height:46px;" alt="">.</p>

<p>This is simulated here by steering a tone burst from a linear transducer onto 
a layered medium heterogeneity. For c1 = 1500 m/s, c2 = 3000 m/s, and 