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What type of lens is used to correct short-sightedness?
- a)Convex lens
- b)Diverging lens
- c)Concave lens
- d)Magnifying lens
Correct answer is option 'C'. Can you explain this answer?
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What type of lens is used to correct short-sightedness?a)Convex lensb)...
Concave lenses are used to correct short-sightedness as they diverge light.
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Understanding Short-Sightedness
Short-sightedness, or myopia, is a common vision condition where distant objects appear blurry while close objects can be seen clearly. This occurs when the eye is longer than normal or the cornea has too much curvature, causing light rays to focus in front of the retina.
Corrective Lens for Short-Sightedness
To correct short-sightedness, a specific type of lens is used:
How Concave Lenses Work
Benefits of Concave Lenses
In summary, concave lenses are the appropriate corrective lenses for short-sightedness, effectively allowing individuals to achieve clear vision for distant objects.
Short-sightedness, or myopia, is a common vision condition where distant objects appear blurry while close objects can be seen clearly. This occurs when the eye is longer than normal or the cornea has too much curvature, causing light rays to focus in front of the retina.
Corrective Lens for Short-Sightedness
To correct short-sightedness, a specific type of lens is used:
- Concave Lens: This type of lens is thinner at the center and thicker at the edges. It diverges light rays that are entering the eye.
How Concave Lenses Work
- Diverging Light Rays: When light rays enter the concave lens, they spread out. This divergence helps to extend the focal point further back to the retina, allowing the viewer to see distant objects clearly.
- Prescription Strength: The degree of myopia determines the strength of the concave lens, measured in diopters. A higher negative number indicates a stronger lens.
Benefits of Concave Lenses
- Clear Vision: They provide a clearer view of distant objects, enabling better overall vision.
- Comfortable Use: Concave lenses are designed to fit comfortably in frames, making them easy for daily use.
In summary, concave lenses are the appropriate corrective lenses for short-sightedness, effectively allowing individuals to achieve clear vision for distant objects.
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What type of lens is used to correct short-sightedness?a)Convex lensb)Diverging lensc)Concave lensd)Magnifying lensCorrect answer is option 'C'. Can you explain this answer?
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What type of lens is used to correct short-sightedness?a)Convex lensb)Diverging lensc)Concave lensd)Magnifying lensCorrect answer is option 'C'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What type of lens is used to correct short-sightedness?a)Convex lensb)Diverging lensc)Concave lensd)Magnifying lensCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What type of lens is used to correct short-sightedness?a)Convex lensb)Diverging lensc)Concave lensd)Magnifying lensCorrect answer is option 'C'. Can you explain this answer?.
What type of lens is used to correct short-sightedness?a)Convex lensb)Diverging lensc)Concave lensd)Magnifying lensCorrect answer is option 'C'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What type of lens is used to correct short-sightedness?a)Convex lensb)Diverging lensc)Concave lensd)Magnifying lensCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What type of lens is used to correct short-sightedness?a)Convex lensb)Diverging lensc)Concave lensd)Magnifying lensCorrect answer is option 'C'. Can you explain this answer?.
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