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Astigmatism is corrected by using
Options
(a) cylindrical lens
(b) plano-convex lens
(c) plano-concave lens
(d) convex lens
Correct Answer:
cylindrical lens
Explanation:
In this defect, eye cannot perpendicular directions clearly that is horizontal and vertical lines simultaneously. It is due to imperfect spherical nature of eye lens. This defect can be removed by using cylindrical lenses.
Related Questions: - Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
- A layer of colourless oil spreads on water surface. White light is incident on it
- The following four wires are made of the same material. Which of these will have
- A ball is dropped from the root of a tower of height h
- If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
- A layer of colourless oil spreads on water surface. White light is incident on it
- The following four wires are made of the same material. Which of these will have
- A ball is dropped from the root of a tower of height h
- If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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