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Q5 (CAPF/2021) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Geometrical optics Answer Verified

Which one of the following statements with regard to a short-sighted person is correct?

Result
Your answer: —  Â·  Correct: B
Explanation

A short-sighted person, suffering from myopia, can see near objects clearly but finds distant objects blurred [1]. This refractive defect occurs because the eye's refractive power is too high or the eyeball is too long, causing light rays from distant objects to focus in front of the retina rather than directly on it [1]. To correct this, a concave (diverging) lens is used [1]. The concave lens diverges the incoming parallel light rays before they enter the eye, effectively extending the focal length so that the image is shifted back onto the retina. In contrast, hypermetropia (long-sightedness) involves difficulty seeing near objects and is corrected with a convex (converging) lens. Therefore, the correct statement identifies that a short-sighted person sees near objects clearly and requires a concave lens for correction.

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

NDA-I · 2012 · Q86 Relevance score: 5.89

Consider the following statements : Hypermetropia is a defect of vision in which 1. a person cannot see the distant objects clearly 2. a person cannot see the near objects clearly 3. the near point of the eye gets shifted away from the normal position 4. the far point of the eye gets shifted towards the eye Which of the statements given above are correct?

CDS-I · 2010 · Q112 Relevance score: 5.89

Consider the following statements 1. A person with myopia can see distant objects distinctly but cannot see nearby objects clearly. 2. A person with hypermetropia cannot see distant objects clearly. 3. A person with presbyopia can see nearby objects without corrective glasses. Which of the statements given above is/are not correct ?

CAPF · 2025 · Q111 Relevance score: 5.87

Which one among the following statements related to human eye is correct? (a) For a person suffering from short-sight defect, the image of a distant object is focused behind the retina. (b) Short-sight defect can be corrected by a converging spectacle lens. (c) For a person suffering from long-sight defect, the image of a near object is focused behind the retina. (d) Long-sight defect can be corrected by a diverging spectacle lens.

CAPF · 2008 · Q6 Relevance score: 5.20

Consider the following statements : 1. In a person suffering from myopia, the image of a distant object is formed behind the retina. 2. Myopia can be corrected by using a concave lens. Which of the above statements is/are correct ?

NDA-II · 2015 · Q17 Relevance score: 4.99

Which one of the following statements is not correct?