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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 potentiometer wire of length 100cm has a resistance of 10Ω. It is connected in series
- Curie temperature above which
- To demonstrate the phenomenon of interference, we require two sources which emit
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A potentiometer wire of length 100cm has a resistance of 10Ω. It is connected in series
- Curie temperature above which
- To demonstrate the phenomenon of interference, we require two sources which emit
- If vₑ is escape velocity and vₙ is orbital velocity of a satellite
- A ball rolls off the top of stair way with a horizontal velocity of magnitude 1.8 m/s
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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