Question

Explain the function and structure of human eye how we can see the nearby as well as the distant object.

Answer 1

♣Hey Dude Here Is Your Answer:-
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♣The Eye Is An Organ Which Allow Us To See The Whole World...
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»»It Consists Of Various Parts:-

★ Iris: It Is a coloured diaphragm present behind the cornea. The hole in the iris through which light passes called pupil which contract or expand according to the amount of light..

★ Eye Lens: It is a transparent crystalline structure which divides the eye into two parts. The front part between Cornea and Eye Lens is filled with a fluid called aqueous humour and the back portion is filled with a jelly-like substance called vitreous humour..

★ Ciliary Muscles: This muscles hold the eye lens
and control the focal length of eye lens..

★ Retina: Retina is like a screen on which the image is formed. It consists of about 125 millions light receptors which is called rode and cone shaped cells.
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♣WORKING OF HUMAN EYE:-
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♦The light rays coming from the object will fall on the eye lens.
♦It is a convex lens which produces real and inverted image on the retina.
♦The images convey to the brain through optic nerves and we are able to see objects.
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»»» HOPE IT WILL HELP YOU DEAR ♥♥♥!!!

Answer 2

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$\huge\bold\green{Human\:Eye}$

▶Human eye is one of the main part. It enables us to see object and colours around us. Human eye is like a camera.

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♠Structure of human eye :-

1)Retina:- The image is formed on the retina .Retina convert the light rays into impulses and sending the signal to the brain. so that the image is formed

2)Lens:-The light enters the eye through the thin membrane called the cornea. And the lens refract light with the help of cornea focused on retina. And thus the image creates.

3)optic nerve :- It is mainly responsible for carrying and sending all the signal to the brain

4)Iris:- It is made up of muscles and it control the size of pupil when the light enters

5)Pupil:-Its regulate and control the amount of light entering the eye.

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♠Now a question how can we can see the nearby as well as the distant object.:-

Our lens become thin too see a distant object clearly and the focal length increases. And for seeing near object clearly our lens become thick.

That's what our eyes function ✔

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