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The far point of a myopic person is 80cm in front of the eye. Which type of lens is required to correct the problem?
- a)Concave
- b)Plane lens
- c)Bifocal
- d)Convex
Correct answer is option 'A'. Can you explain this answer?
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The far point of a myopic person is 80cm in front of the eye. Which ty...
The corrected lens should be such that it forms the image at the retina instead of, infront of the retina.
For object at infinity, u = – ∞
Far point distance of the defected eye, v = –80 cm
Using lens formula,
Since, power of the lens is negative, remedial lens is a concave lens.
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The far point of a myopic person is 80cm in front of the eye. Which ty...
Explanation:
Myopia, also known as nearsightedness, is a common vision problem that occurs when the eye grows too long or the cornea becomes too curved. This causes light to focus in front of the retina, instead of directly on it, resulting in blurry vision when looking at distant objects.
To correct myopia, a concave lens is required. A concave lens is thinner in the center and thicker at the edges, causing light rays to diverge as they pass through the lens. This helps to move the focal point back to the retina, allowing for clear vision of distant objects.
Other types of lenses, such as a plane lens or bifocal, are not suitable for correcting myopia. A plane lens has no curvature and does not bend light, while a bifocal lens is used to correct presbyopia, a condition that occurs with age and causes difficulty focusing on near objects.
In summary, a concave lens is the correct type of lens required to correct myopia, as it helps to move the focal point back to the retina and allows for clear vision of distant objects.
Myopia, also known as nearsightedness, is a common vision problem that occurs when the eye grows too long or the cornea becomes too curved. This causes light to focus in front of the retina, instead of directly on it, resulting in blurry vision when looking at distant objects.
To correct myopia, a concave lens is required. A concave lens is thinner in the center and thicker at the edges, causing light rays to diverge as they pass through the lens. This helps to move the focal point back to the retina, allowing for clear vision of distant objects.
Other types of lenses, such as a plane lens or bifocal, are not suitable for correcting myopia. A plane lens has no curvature and does not bend light, while a bifocal lens is used to correct presbyopia, a condition that occurs with age and causes difficulty focusing on near objects.
In summary, a concave lens is the correct type of lens required to correct myopia, as it helps to move the focal point back to the retina and allows for clear vision of distant objects.
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The far point of a myopic person is 80cm in front of the eye. Which type of lens is required to correct the problem?a)Concaveb)Plane lensc)Bifocald)ConvexCorrect answer is option 'A'. Can you explain this answer?
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