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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: - The conductivity in the intrinsic semiconductor does not depend on
- The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
- The temperature coefficient of the resistance of a wire is 0.00125 per ⁰C.
- For non-conductors, the energy gap is
- The surface tension of soap solution is 0.03 N/m. The work done in blowing to form a soap
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The conductivity in the intrinsic semiconductor does not depend on
- The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
- The temperature coefficient of the resistance of a wire is 0.00125 per ⁰C.
- For non-conductors, the energy gap is
- The surface tension of soap solution is 0.03 N/m. The work done in blowing to form a soap
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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