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Which one of the following statements is not true for a person suffering from hypermetropia?
- a)The person can see far objects distinctly.
- b)The focal length of the lens is large.
- c)The image of the close object is focussed behind the retina.
- d)A concave lens is used to correct this defect.
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following statements is not true for a person sufferi...
Hypermetropia is corrected by using a concave lens. Myopia is corrected by convex lens.
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Which one of the following statements is not true for a person sufferi...
Explanation:
Hypermetropia, also known as farsightedness, is a refractive error of the eye where the light entering the eye is focused behind the retina instead of on it. This results in difficulty in seeing nearby objects clearly.
Statement a: The person can see far objects distinctly.
- This statement is true for a person suffering from hypermetropia. Since the light is focused behind the retina, the person can see distant objects more clearly than nearby objects.
Statement b: The focal length of the lens is large.
- This statement is also true for a person suffering from hypermetropia. In order to bring the image onto the retina, a converging lens with a larger focal length is required. This helps in bending the light rays more so that they converge at the retina.
Statement c: The image of the close object is focused behind the retina.
- This statement is true for a person suffering from hypermetropia. Due to the inherent refractive error, the light rays from nearby objects are not properly focused onto the retina. Instead, they are focused behind the retina, resulting in a blurred image.
Statement d: A concave lens is used to correct this defect.
- This statement is not true for a person suffering from hypermetropia. A concave lens is used to correct another refractive error called myopia, where the light is focused in front of the retina. In the case of hypermetropia, a convex lens is used to converge the light rays more and bring the image onto the retina.
In conclusion, statement d is not true for a person suffering from hypermetropia. A convex lens is used to correct hypermetropia, not a concave lens.
Hypermetropia, also known as farsightedness, is a refractive error of the eye where the light entering the eye is focused behind the retina instead of on it. This results in difficulty in seeing nearby objects clearly.
Statement a: The person can see far objects distinctly.
- This statement is true for a person suffering from hypermetropia. Since the light is focused behind the retina, the person can see distant objects more clearly than nearby objects.
Statement b: The focal length of the lens is large.
- This statement is also true for a person suffering from hypermetropia. In order to bring the image onto the retina, a converging lens with a larger focal length is required. This helps in bending the light rays more so that they converge at the retina.
Statement c: The image of the close object is focused behind the retina.
- This statement is true for a person suffering from hypermetropia. Due to the inherent refractive error, the light rays from nearby objects are not properly focused onto the retina. Instead, they are focused behind the retina, resulting in a blurred image.
Statement d: A concave lens is used to correct this defect.
- This statement is not true for a person suffering from hypermetropia. A concave lens is used to correct another refractive error called myopia, where the light is focused in front of the retina. In the case of hypermetropia, a convex lens is used to converge the light rays more and bring the image onto the retina.
In conclusion, statement d is not true for a person suffering from hypermetropia. A convex lens is used to correct hypermetropia, not a concave lens.
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Which one of the following statements is not true for a person sufferi...
D is not correct bcz concave lens is use for myopia
and convex lens for hypermetropia
and convex lens for hypermetropia
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Which one of the following statements is not true for a person suffering from hypermetropia?a)The person can see far objects distinctly.b)The focal length of the lens is large.c)The image of the close object is focussed behind the retina.d)A concave lens is used to correct this defect.Correct answer is option 'D'. Can you explain this answer?
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Which one of the following statements is not true for a person suffering from hypermetropia?a)The person can see far objects distinctly.b)The focal length of the lens is large.c)The image of the close object is focussed behind the retina.d)A concave lens is used to correct this defect.Correct answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which one of the following statements is not true for a person suffering from hypermetropia?a)The person can see far objects distinctly.b)The focal length of the lens is large.c)The image of the close object is focussed behind the retina.d)A concave lens is used to correct this defect.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not true for a person suffering from hypermetropia?a)The person can see far objects distinctly.b)The focal length of the lens is large.c)The image of the close object is focussed behind the retina.d)A concave lens is used to correct this defect.Correct answer is option 'D'. Can you explain this answer?.
Which one of the following statements is not true for a person suffering from hypermetropia?a)The person can see far objects distinctly.b)The focal length of the lens is large.c)The image of the close object is focussed behind the retina.d)A concave lens is used to correct this defect.Correct answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which one of the following statements is not true for a person suffering from hypermetropia?a)The person can see far objects distinctly.b)The focal length of the lens is large.c)The image of the close object is focussed behind the retina.d)A concave lens is used to correct this defect.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not true for a person suffering from hypermetropia?a)The person can see far objects distinctly.b)The focal length of the lens is large.c)The image of the close object is focussed behind the retina.d)A concave lens is used to correct this defect.Correct answer is option 'D'. Can you explain this answer?.
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