A sonar wave ray travels through seawater and is incident on a vertical underwater cliff face as shown in the diagram.
Complete the ray diagram to show the reflection of the sonar wave ray by doing the following:
- Draw the normal line at the point of incidence.
- Draw the reflected ray with an arrow showing its direction of propagation.
- Calculate and label the angle of incidence, iii, and the angle of reflection, rrr, with their values in degrees.