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Question : 26
Total: 29
Amit's uncle was finding great difficulty in reading a book placed at normal place. He was not going to the doctor because he could not afford the cost. When Amit came to know of it, he took his uncle to the doctor. After thoroughly checking his eyes, the doctor prescribed the proper lenses for him. Amit bought the spectacles for his uncle from his pocket money. By using spectacles he could now read with great ease. For this, he expressed his gratitude to his nephew.
Based on the above paragraph, answer the following:
(a) (i) Why does least distance of distinct vision increase with age?
(ii) What type of lens is required to correct this defect?
(b) What, according to you, are the two values displayed by Amit towards his uncle?
Based on the above paragraph, answer the following:
(a) (i) Why does least distance of distinct vision increase with age?
(ii) What type of lens is required to correct this defect?
(b) What, according to you, are the two values displayed by Amit towards his uncle?
Solution:
(a) (i) Least distance of distinct vision changes with age due to following two reasons:
● Power of accommodation decreases due to weakening of ciliary muscle.
● Eye lens loses flexibility.
(ii) Convex lens is required to correct this defect (hypermetropia).
(b) Empathy and concern for elder persons.
● Power of accommodation decreases due to weakening of ciliary muscle.
● Eye lens loses flexibility.
(ii) Convex lens is required to correct this defect (hypermetropia).
(b) Empathy and concern for elder persons.
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