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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: - In communication with help of antenna if height is doubled then the range
- A point source emits sound equally in all directions in a non-absorbing medium.
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In communication with help of antenna if height is doubled then the range
- A point source emits sound equally in all directions in a non-absorbing medium.
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- A heavy stone hanging from a massless string of length 15 m is projected
- A solid sphere of mass M, radius R and having moment of inertia about an axis passing
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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