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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: - “On flowing current in a conducting wire the magnetic field is produced around it”.
- When alpha particles captures and electron, then it becomes a
- Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- “On flowing current in a conducting wire the magnetic field is produced around it”.
- When alpha particles captures and electron, then it becomes a
- Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
- The escape velocity from the earth is Ve. The escape velocity from a planet
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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