Advertisements
Advertisements
Question
What is the function of the lens in the human eye?
Solution
In the human eye, the function of the lens is to focus the light rays entering the eye from an object and form a real and inverted image of the object on the light-sensitive screen called the retina.
APPEARS IN
RELATED QUESTIONS
Where does the greatest degree of refraction of light occur in the eye?
The eyes of a person are focused (i) on a nearby object, and (ii) on a distant object, turn by turn. In which case:
the converging power of eye-lens will be the maximum?
How is the amount of light entering the eye controlled?
The human eye possesses the power of accommodation. This is the power to:
(a) alter the diameter of the pupil as the intensity of light changes
(b) distinguish between lights of different colours
(c) focus on objects at different distances
(d) decide which of the two objects is closer.
Which parts of the eye cause rays of light to converge on the retina?
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons cannot donate eyes?
Answer the following question.
Trace the sequence of events Whichoccur when a bright light is focused on your eyes.
The following figure show the change in the shape of the lens while seeing distant and nearby objects. Complete the figures by correctly labelling the diagram.
When light rays enter the eye, most of the refraction occurs at the ____________.
Vitreous humour is present between ______.