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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: - For a wave propagating in a medium, identify the property that is independent
- At place on earth, the vertical component of earth’s magnetic field is √3 times
- A beam of light of wavelength 600 nm from a distant source falls
- The minimum wavelength of X-rays emitted by X-ray tube is 0.4125Å
- A wire in the form of a circular loop of one turn, carrying a current, produces
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For a wave propagating in a medium, identify the property that is independent
- At place on earth, the vertical component of earth’s magnetic field is √3 times
- A beam of light of wavelength 600 nm from a distant source falls
- The minimum wavelength of X-rays emitted by X-ray tube is 0.4125Å
- A wire in the form of a circular loop of one turn, carrying a current, produces
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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