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प्रश्न
How does the eye regulate the amount of light that falls on the retina?
उत्तर
Pupil is the small aperture in the iris that regulates the amount of light entering the eye. Cornea, aqueous humour, lens, and vitreous humour act together and refract light rays, focussing them onto the photoreceptor cells of the retina
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संबंधित प्रश्न
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Power of accommodation of the eye.
Draw labelled diagrams of the following: Eye
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(a) The lens moves in or out
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Choose the correct answer.
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| 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 |
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