electromagentic energy.
Light in the visible spectrum
Visible light waves are the electromagnetic waves which are detected by the human eye. They make up only a small part of the electromagnetic spectrum. So, visible light is any light in which the human eye can detect.
Black Holes by nature cannot be "seen" because of their gravitational ability to pull in light. Obviously you "see" something when light hits an object and then enters your eye. Black holes can be detected with a combination of electronics and deductive reasoning. Black holes emit x-rays which can be detected. It is when x-rays are detected from space yet no possible visible source is found that a black hole exists.
The pupil controls the amount of light that enters the eye.
Light rays enter the eye through the cornea.
Iris controls the amount of light entering into the eye.
Light in the visible spectrum
Rods.
"Color" is the sensation that a light produces in your eye and your brain. Ultraviolet light is not detected by your eye, so there's no such thing as its color.
The eye detects visual light, which is a quite narrow spectrum of electromagnetic wavelengths.
Visible light waves are the electromagnetic waves which are detected by the human eye. They make up only a small part of the electromagnetic spectrum. So, visible light is any light in which the human eye can detect.
Light reflects off of things and into your eye, where it is detected, turned into nerve impulses and sent on to your brain.
The visible spectrum is the portion of the electromagnetic spectrum that is visible to (can be detected by) the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light.
The front of the eye (where you see your pupil and iris) is protected by the Cornea , a clear protective layer . The rest of the eye is protected by the sclera, a white, tough substance which covers the rest of the eye, around the back etc.However, the retina is located on the back inside of the eye. This is where the stimulus (light) is detected by rod cells (in the dark) and cone cells (in the light) .
The retina forms the inner-wall layer at the back of the human eye ball that consists of many light-sensitive cells that absorb light rays and convert them into electrical nerve impulses that signals the brain about the image(s) that the eyes detected.
The process by which light is detected by the human eye and converted to an image is a serious of energy changes. Light is the first energy which causes chemical reactions. These reactions are then changed to electrical energy signals which are sent to the brains through the optical nerve.
A human eye lets light enter the pupil and it is then focused on the retina by the lens. They interact to send messages to the brain which control color, and detail.
Are those changes thst can be detected by the naked eye