200
1 light year = 9.4605284 × 1015 meters
A light-year is about 9.46 x 1015 meters.
Yes, oceans are generally dark below 100 meters due to the absorption and scattering of sunlight. Most of the light is absorbed in the first few hundred meters, with only a small percentage penetrating deeper. Below this depth, the environment becomes increasingly pitch-black, making it challenging for photosynthetic life to thrive. As a result, the deep ocean is characterized by darkness, with bioluminescent organisms often being the only sources of light.
The speed of light in vacuum is:186,282 miles per second.299,792,458 meters per second.
The speed of air at 20 degrees Celsius is 343 meters per second. The speed of light is 299 792 458 meters per second.
Red light penetrates water the least, as it is quickly absorbed and scattered in the first few meters. Blue light, on the other hand, penetrates the deepest in water due to its longer wavelength.
The surface zone
Hagfish are deep-sea creatures that predominantly inhabit the aphotic zone, which is the deepest and darkest part of the ocean where little to no sunlight penetrates. They are typically found at depths ranging from a few hundred to several thousand meters below the surface.
blue light penetrates the deepest in water
Red light is absorbed quickly in water and doesn't penetrate past a few meters, while blue light can penetrate deeper as it is scattered less and absorbed more slowly. That's why red light is not visible below 6 meters in the ocean, while blue light can still be seen at 35 meters.
Red
It varies
The zone in the open ocean where light penetrates only to a depth of a few hundred meters is called the photic zone. This layer supports photosynthesis and is home to a variety of marine life, including phytoplankton and some fish species. Beyond this zone lies the aphotic zone, where light does not reach, making it dark and often inhabited by organisms adapted to those conditions.
blue
In aquatic environments, red light penetrates the least, while blue light penetrates the farthest. Blue wavelengths of light can travel deeper into water, making them more effective for photosynthesis in algae found at greater depths. This allows certain species of algae to thrive in deeper waters where blue light is more prevalent.
In the deep sea, natural light is virtually absent, as sunlight penetrates only the upper layers of the ocean, typically up to about 200 meters (656 feet). Below this depth, the environment is dark, leading to adaptations in marine life such as bioluminescence. Some organisms, like certain jellyfish and deep-sea fish, can produce their own light through chemical reactions, which they use for communication, predation, or camouflage.
In the ocean, blue light penetrates the deepest due to its shorter wavelength and higher energy compared to longer-wavelength light. Blue light can travel further through water before being absorbed, making it the dominant color at greater depths.