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प्रश्न
Fill in the following blank with suitable word:
The part of eye which alters the size of the pupil is............
उत्तर
The part of eye which alters the size of the pupil is iris.
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संबंधित प्रश्न
What is the name of:
the light-sensitive layer in the eye?
What changes take place in the shape of eye-lens:
when the eye is focused on a near object?
Name the following:
The photoreceptors found in the retina of the eye.
Mention, where in living organism is the following located and state their main function:
Fovea centralis
State the function of each of the following parts of the human eye:
(i) Cornea
(ii) Iris
(iii) Pupil
(iv) Retina
Millions of people of the developing countries are suffering from corneal blindness. This disease can be cured by replacing the defective cornea with the cornea of a donated eye. Your school has organised a campaign in the school and its neighbourhood in order to create awareness about this fact and motivate people to donate their eyes after death. How can you along with your classmates contribute in this noble cause? State the objectives of organising such campaigns in schools.
What is the function of iris and the muscles connected to the lens in human eye?
Give the main function of the following:
Retina
What is the nature of the image that forms on the retina?
The muscular diaphragm that controls the size of the pupil is ____________.
Match the following
| 1. | Conjunctiva | a. | Coloured part of eye |
| 2. | Cornea | b. | Photosensitive layer |
| 3. | Iris | c. | Refraction |
| 4. | Retina | d. | Protection |
