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Question
Name the following:
The layer of the wall of the eye-ball that corresponds to the black lining of the box of a camera
Solution
Choroid
RELATED QUESTIONS
Write the function of the following part of the human eye: crystalline lens
Match the following:
| Column I | Column II |
| (i) Myopia | (a) Converging power of eye lens becomes low |
| (ii) Hypermetropia | (b) Converging power of eye lens remains the same |
| (c) Converging power of eye lens becomes high |
What is the name of:
the curved, transparent front surface of the eye?
If you walk from a dark room into sunlight and back again into dark room, how would your pupils alter in size? What makes this happen?
The term " accommodation" as applied to the eye, refers to its ability to:
(a) control the light intensity falling on the retina
(b) erect the inverted image formed on the retina
(c) vary the focal length of the lens
(d) vary the distance between the lens and retina
Explain why, when it is getting dark at night, it is impossible to make out the colour of cars on the road.
Name two animals having eyes:
one the sides of the head.
Name two animals having eyes:
at the front of the head.
Mention if the following statement is true (T) or false (F) Give reason.
Sometimes medicines dropped into the eyes come into the nose and even throat
What is a lacrimal gland?
Give the main function of the following:
Three semicircular canals
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.
Mention, if the following statement is True or False
The least distance of distinct vision for the human eye is 25 cm
Complete the following sentence with appropriate Word
The part of the human eye where rod cells and cone cells are located is the:
Complete the following sentence with appropriate Word
The photoreceptor cells of the retina sensitive to colour are:
Shylesh is a school-going kid studying standard VIII. He is crazy about playing video games on mobile phones. After a couple of months, his eyes turned red and he felt severe pain in his eyes. His science teacher enquired about this and advised his parents to take him to an eye doctor.
- How does excessive usage of mobile phone affect our eyes?
- What are the values shown by the teacher?
Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?
Match the following:
| Column - I | Column - II |
| 1. Retina | a) Path way of light |
| 2. Pupil | b) Far point comes closer |
| 3. Ciliary muscles | c) near point moves away |
| 4. Myopia | d) Screen of the eye |
| 5. Hypermetropia | e) Power of accommodation |
Vitreous humour is present between ______.
Arrange and rewrite the term in group in correct order to be in a logical sequence, beginning with the term that is underlined:
Pupil, Aqueous humour, Retina, Vitreous humour.
