When a light wave hits the surface of a pool, some of the light will be reflected off the surface, while the rest will be absorbed by the water and pass into the pool. The angle at which the light hits the surface will determine how much light is reflected and how much is absorbed. If the light hits the surface at a perpendicular angle (90 degrees), most of the light will be reflected, resulting in a strong, sharp reflection on the surface of the pool. If the light hits the surface at a shallow angle (less than 90 degrees), more of the light will be absorbed by the water, resulting in a weaker or distorted reflection on the surface.
The light that is absorbed by the water will continue to travel through the water, but its intensity will decrease as it travels. This is due to a process called absorption, where the water molecules absorb the energy from the light and convert it into heat. The deeper the light travels into the pool, the more the water will absorb the light, and the dimmer the light will become.
Additionally, the light that enters the pool may be scattered by particles or other objects in the water, which can cause the light to spread out and become less focused. This can cause the light to appear blurry or distorted when viewed from different angles. The color of the light may also be affected by the water, as different colors of light have different wavelengths and are absorbed by the water at different rates. This can cause the light to appear different colors when viewed from different depths in the pool.