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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 jar is filled with two non-mixing liquids 1 and 2 having densities
- Kirchoff’s I law and II laws of electricity prove respectively the
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- A long straight wire carrying current of 30A is placed in an external uniform
- When radiation is incident on a photoelectron emitter,
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A jar is filled with two non-mixing liquids 1 and 2 having densities
- Kirchoff’s I law and II laws of electricity prove respectively the
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- A long straight wire carrying current of 30A is placed in an external uniform
- When radiation is incident on a photoelectron emitter,
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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