| ⇦ | 
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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
- Two particles A and B having equal charges +6C, after being accelerated
- In a given process on an ideal gas, dW=0 and dQ<0. Then for the gas
- The direction of magnetic line of force of a bar magnet is
- A common emitter amplifier gives an output of 3 V for an input of 0.01 V.
- The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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