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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.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a body travels half the distance with velocity v1 and the next half with velocity v2
- The temperature at which the vapour pressure of a liquid becomes equal to the external
- Two particles A and B, move with constant velocities V₁ and V₂. At the initial
- Charge density for intrinsic semiconductor will be
- A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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