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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 galvanometer has a resistance 50Ω. A resistance of 5Ω is connected parallel to it.
- Magnetism of a magnet is due to
- If threshold wevelength for sodium is 6800 Å, the work function will be
- A cylindrical tank is filled with water to a level of 3m. A hole is opened at a height
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A galvanometer has a resistance 50Ω. A resistance of 5Ω is connected parallel to it.
- Magnetism of a magnet is due to
- If threshold wevelength for sodium is 6800 Å, the work function will be
- A cylindrical tank is filled with water to a level of 3m. A hole is opened at a height
- The conductivity in the intrinsic semiconductor does not depend on
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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