waves & optics

3. The phenomenon where two or more waves overlap and their combined effect can be stronger or weaker than the individual waves.
4. A lens that curves outward, focusing light.
5. The bending of waves around obstacles or through openings.
9. A lens that curves inward, diverging light.
10. a longitudinal wave, the region where the particles are close together.
13. A wave where the displacement is parallel to the direction of propagation.
14. The distance between the optical center of a lens or mirror and its focal point.
16. The number of wave cycles that pass a given point in a unit of time

1. The maximum displacement or distance from the wave's equilibrium point.
2. The bouncing back of light when it strikes a surface.
6. A wave where the displacement is perpendicular to the direction of propagation.
7. The point where parallel rays of light converge after passing through a lens or being reflected by a mirror.
8. The alignment of the electric field oscillations of electromagnetic waves in a specific direction.
11. The distance between two consecutive peaks or troughs of a wave.
12. .
15. bending of light as it passes from one medium to another with a different refractive index.