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प्रश्न
The figure below compares a part of our eye with a part of a photographic camera.
Explain the mode of working and the functions of the parts of the eye mentioned above.
उत्तर
The cornea is the eye's main focusing element. It takes widely diverging rays of light and bends them through the pupil; the rays are further converged by the lens.
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संबंधित प्रश्न
The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to ______.
Name the part of the eye:
which controls the amount of light entering the eye.
Which of the following controls the amount of light entering the eye?
(a) ciliary muscles
(b) lens
(c) iris
(d) cornea
Suggest how your irises help to protect the retinas of your eyes from damage by bright light.
Which part brings the image into sharp focus on the retina? How does it do this?
When is a person said to have developed cataract in his eye? How is the vision of a person having cataract restored?
Among animals, the predators (like lions) have their eyes facing forward at the front of their heads, whereas the animals of prey (like rabbit) usually have eyes at the sides of their head. Why is this so?
Having two eyes gives a person:
(a) deeper field of view
(b) coloured field of view
(c) rear field of view
(d) wider field of view
What is a lacrimal gland?
With reference to the functioning of the eye, answer the question that follow:
Name the cells of the retina and its respective pigments which get activated in the dark.
What is the function of iris and the muscles connected to the lens in human eye?
Sketch and label V.S. of a human eye.
State the Function:
Ear drum
Complete the following sentence with appropriate Word
The part of the human eye where rod cells and cone cells are located is the:
In the figure of the human eye, the cornea is represented by the letter
Name the part of the eye which gives colour to the eyes.
Name the following:
Place of best vision in the retina of the eye.
The thin, transparent extension of sclerotic layer found in front of the lens is ______.
Write the main functional activity of the following structure.
Choroid
