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Q94 (NDA-I/2011) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Geometrical optics Answer Verified

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

Result
Your answer: —  Â·  Correct: A
Explanation

Statement I is true as a myopic person is advised to use a concave lens for vision correction [c1][t1]. Statement II is also true because in a myopic eye, the image of distant objects is focused in front of the retina rather than on it [c1][t4]. This occurs because the eye's refractive power is too strong or the eyeball is too long [t9]. A concave lens, being a diverging lens, spreads the incoming parallel light rays before they enter the eye [t1][t3]. This divergence effectively shifts the focal point further back so that it falls precisely on the retina [t6][t7]. Therefore, Statement II provides the correct scientific explanation for why a concave lens is used to correct myopia, as it directly addresses the underlying optical defect described in Statement I.

Sources

  1. [1] Science , class X (NCERT 2025 ed.) > Chapter 10: The Human Eye and the Colourful World > What you have learnt > p. 170
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SIMILAR QUESTIONS

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