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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 molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio
- A student performs an experiment to determine the Young’s modulus of a wire
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio
- A student performs an experiment to determine the Young’s modulus of a wire
- The drift velocity of the electrons in a copper wire of length 2 m under
- What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω
- A thin and circular disc of mass M and radius R is rotating in a horizontal plane
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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