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प्रश्न
How is the amount of light entering the eye controlled?
उत्तर
The amount of light entering the eye is controlled by changing the radius of the pupil. The pupil changes its radius with the help of the iris, which allows it to either expand or contract according to the intensity of light.
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संबंधित प्रश्न
Compare the following: Choroid and retina
Distinguish between: aqueous humor and vitreous humor
What is the:
near point of a normal human eye?
Give the scientific names of the following parts of the eye:
changes shape to focus a picture on the retina.
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
Choose the correct answer.
Colour is detected by ____________
State the Function:
Ear drum
Long answer question
Draw the neat labelled diagram of the Sectional view of the human eye.
Match the following:
| Column - I | Column - II | ||
| 1 |
Retina |
a | Pathway 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 | f | Power of accommodation |
| 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 accomodation |
