1. Reflection: A portion of the light is reflected back into the air. This is the light you see when you look at the water's surface. The angle of incidence (the angle the light hits the water) equals the angle of reflection (the angle the light bounces off at).
2. Refraction: The rest of the light enters the water and bends. This bending of light is called refraction. It occurs because light travels slower in water than it does in air. The amount of bending depends on the angle of incidence and the difference in the speed of light in the two mediums.
3. Absorption: Some light is absorbed by the water molecules. This is why deep water appears dark.
Here's a breakdown of what happens to the light ray:
* Incident Ray: The original ray of light coming from the air.
* Reflected Ray: The ray of light bouncing off the water surface.
* Refracted Ray: The ray of light entering the water and bending.
Important Notes:
* Normal: An imaginary line perpendicular to the surface of the water at the point where the light ray hits.
* Angle of Incidence: The angle between the incident ray and the normal.
* Angle of Reflection: The angle between the reflected ray and the normal.
* Angle of Refraction: The angle between the refracted ray and the normal.
The laws of reflection and refraction govern these phenomena. Understanding these principles is crucial in fields like optics, photography, and even the study of rainbows.
