Question

describe working of the eye

Answer 1

The light rays coming from an object enter they're through the cornea amass pupil and get refracted through transparent lens. The beam of light converges and forms a real and inverted image on the retina and gets converted into electrical signals that are sent to the brain through optic nerve.

Answer 2

Answer:

The light rays coming from the object first enter the eye through cornea. A muscular diaphragm behind the cornea is known as an iris. It can control the amount of light that enters into the eye.An aperture of an eye behind the cornea at the center is known as pupil.Its size can be controlled by iris. After passing through the pupil,the light rays are incident on a jelly like elastic material know as eye lens. The muscular structures which hold the eye lens in its position are known as cilliary muscle.They change the focal length of an eye lens by changing its thickness.Position of image where images formed due to refraction by eye lens is c/a retina. when the light rays fall on retina,the light sensitive cells generate electrical signals.The signals are sent to the brain through the optic nerves where the image of an object interpreted.

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