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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: - A car sounding a horn of frequency 100 Hz passes an observer. The ratio
- The radius of germanium nuclide is measured to be twice the radius of ₄⁹Be.
- A disc of mass 100 g is kept floating horizontally in air by firing bullets
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A car sounding a horn of frequency 100 Hz passes an observer. The ratio
- The radius of germanium nuclide is measured to be twice the radius of ₄⁹Be.
- A disc of mass 100 g is kept floating horizontally in air by firing bullets
- The S.I. unit of radioactivity is
- A 6 volt battery is connected to the terminals of a three metre long wire of uniform
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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