Answer;
I
Explanation;
Wave interactions results from the interaction of waves and matter, these interactions occur when waves pass from one medium to another. The types of interactions includes; reflection, refraction, interference and diffraction.
- Reflection takes place when waves bounce back from a surface that they cannot pass through.
- Refraction takes place when waves bend as they enter a new medium at an angle and start traveling at a different speed.
- Diffraction is another wave interaction that occur when waves spread out as they travel around obstacles or through openings in obstacles.
- Interference occurs when two or more waves meet at the same place a the same time.