Statement I: A myopic person is advised to use concave lens Statement II: The eye lens of a myopic person focuses the parallel rays coming from distant objects in front of the retina

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Q: 95 (NDA-I/2011)
Statement I: A myopic person is advised to use concave lens
Statement II: The eye lens of a myopic person focuses the parallel rays coming from distant objects in front of the retina

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,29,21,29,10,8,3

keywords: 

{'eye lens': [0, 0, 0, 1], 'concave lens': [0, 1, 6, 5], 'parallel rays': [0, 0, 0, 2], 'myopic person': [0, 0, 0, 2], 'retina': [0, 2, 2, 4], 'distant objects': [0, 0, 1, 3]}

The given question and answer pertain to the condition of myopia, or nearsightedness. The first statement states that a myopic person is advised to use a concave lens. This statement is true because a concave lens helps to correct myopia by diverging incoming light rays before they reach the eye lens, allowing them to properly focus on the retina.

The second statement explains why a myopic person needs a concave lens. It states that the eye lens of a myopic person focuses parallel rays from distant objects in front of the retina. This statement is also true. In myopia, the eye lens tends to be too powerful or the eyeball is too elongated, causing the focal point to fall in front of the retina instead of directly on it. This results in blurry vision when looking at distant objects.

Therefore, both statements are individually true. Furthermore, the second statement provides the correct explanation for why a myopic person is advised to use a concave lens. The concave lens helps to diverge the incoming rays even more, allowing them to focus properly on the retina and improve distance vision. Thus, the correct answer is option 1.

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