When light passes from one medium to another medium of different densities, the light ray changes it direction at the point of incident. This process is called "Refraction of light".

The laws of Reflection are:-
Ist Law : Angle of incidence is equal to angle of reflection.

IInd Law : Incident ray, reflected ray and normal ray at a point of incidence all they lie on the same plane.

Refraction of Light:
Refraction of light is the bending of light as it passes from one medium to another. This phenomenon occurs because light travels at different speeds in different mediums, causing it to change direction.

Laws of Reflection:
- First Law: The angle of incidence is equal to the angle of reflection. This means that the angle at which light strikes a surface is equal to the angle at which it is reflected off the surface.
- Second Law: The incident ray, the reflected ray, and the normal to the surface all lie in the same plane. This means that the incident ray, the reflected ray, and a line perpendicular to the surface at the point of incidence all lie in the same plane.

Explanation:
When light strikes a surface, it can either be reflected or refracted. Reflection occurs when light bounces off a surface, following the laws of reflection. Refraction occurs when light enters a new medium and changes direction due to the change in speed. Both reflection and refraction are important phenomena in optics and have various applications in everyday life, such as in the design of mirrors, lenses, and optical devices.
Understanding the laws of reflection helps us predict how light will behave when it interacts with different surfaces. By applying these laws, we can accurately design and analyze optical systems, ensuring that light behaves as expected and achieves the desired outcomes.