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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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- A wheel has moment of inertia 5 x 10⁻³ kgm² and is making 20 revolutions per sec
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a discharge tube ionization of enclosed gas is produced due to collisions between
- A wheel has moment of inertia 5 x 10⁻³ kgm² and is making 20 revolutions per sec
- An electron in hydrogen atom makes a transition n₁ → n₂
- The electirc field in a certain region is acting radially outward and is given by E=Ar.
- A body A experiences perfectly elastic collision with a stationary body B
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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