1 light year = 9.4605284 × 1015 meters
A light-year is about 9.46 x 1015 meters.
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.
In a second, light travels about 300,000 km., or 3x108 meters.
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 penetrates the least in water because it has longer wavelengths and is more easily absorbed, while blue light penetrates the farthest as it has shorter wavelengths and is scattered less.
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.
It varies
blue
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.
Because it penetrates the skin and can cause mutations.
All light penetrates water to a certain extent. However, the shorter the wavelength of the light, the more energy it carries and the less it is absorbed by the water. Blue has a short wavelength compared to red light, so it penetrates further than most of the rest of the visible spectrum.
The light of the camera penetrated through darkness like