## Explanation

### Diffraction

Water bending around a dock serves as a **classic example of diffraction**, a phenomenon observed in waves when they encounter an obstacle or slit. This behavior helps demonstrate how waves can **spread out** when they hit an impediment.

### Wave Behavior in Diffraction

When waves such as water waves meet an obstacle, they have the tendency to bend around it. This is governed by the principles of wave mechanics. As the waves encounter the dock:

$\text{Wave velocity: } v = f \lambda$where $v$ is the velocity, $f$ is the frequency, and $\lambda$ is the wavelength.

### Factors Influencing Diffraction

**Wavelength** significantly impacts how much bending or spreading occurs. Longer wavelengths exhibit more noticeable diffraction effects. The relationship is further elucidated by:

where $\theta$ is the angle of diffraction, $\lambda$ is the wavelength, and $a$ is the size of the obstacle.

### Real-World Implications

Understanding this **wave diffraction** has considerable practical applications. In navigational contexts, it aids in predicting water wave behavior around piers, docks, and similar structures to ensure maritime safety and engineering efficacy.

### Key Takeaways

**Diffraction**is the primary phenomenon observed when water waves bend around a dock.**Wavelength**plays a crucial role in determining the extent of diffraction.- Practical applications underscore the importance of anticipating wave behavior in marine environments.