| ⇦ | 
| ⇨ |
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
- When a p-n junction is reverse biased, then the current through the junction
- The resistance of a carbon resistor of colour code Red-Red Green Silver is(in kΩ)
- A hollow metal sphere of radius 10 cm is charged such that the potential on its surface
- A and B are two vectors and θ is the angle between them ,if |A x B|=√3(A.B),the value of θ
- If by mistake voltmeter is connected in series and ammeter in parallel then
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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