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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: - If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy
- Stress to strain ratio is equivalent to
- An α-particle of energy 5 MeV is scattered through 180⁰ by a fixed uranium nucleus.
- Light of wavelength λ is incident on slit of width d. The resulting diffraction
- A block of mass 4 kg is kept on a rough horizontal surface.The coefficient of static
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy
- Stress to strain ratio is equivalent to
- An α-particle of energy 5 MeV is scattered through 180⁰ by a fixed uranium nucleus.
- Light of wavelength λ is incident on slit of width d. The resulting diffraction
- A block of mass 4 kg is kept on a rough horizontal surface.The coefficient of static
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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