Law of Reflection
The Law of Reflection states that the angle of incidence is equal to the angle of reflection. This fundamental principle of optics applies to the reflection of light waves off a smooth surface. When a ray of light strikes a surface, it bounces off at an equal angle on the other side of the normal line (a line perpendicular to the surface).

Explanation
- When light strikes a surface, the angle between the incident ray and the normal line is called the angle of incidence.
- According to the Law of Reflection, the angle of reflection is equal to the angle of incidence. This means that the reflected ray will make the same angle with the normal line as the incident ray.
- This principle can be observed in everyday life when looking at your reflection in a mirror. The angle at which you see your reflection is equal to the angle at which the light from your image hits the mirror.

Significance
- The Law of Reflection is crucial in understanding how light behaves when it interacts with surfaces. It helps in predicting the path of reflected light rays and determining the properties of images formed by mirrors.
- This law is also utilized in various optical devices such as mirrors, lenses, and cameras, where understanding the behavior of reflected light is essential for their operation.
In conclusion, the Law of Reflection plays a significant role in optics by stating that the angle of incidence is equal to the angle of reflection. This principle governs the behavior of light waves when they strike a surface, leading to predictable outcomes in terms of reflection.