The waves that are shown in the image are undergoing reflection.
When waves come into contact with a barrier or obstruction, they are said to reflect, which causes them to change course. This happens when waves come into contact with a material that has altered characteristics, including elasticity or density. The angle of incidence and angle of reflection are equal when the incident wave hits the boundary, as stated by the law of reflection.
Reflection plays a crucial role in phenomena like echoes, mirror reflection, and the behavior of waves in various environments.
Missing parts;
Explain how the waves are behaving