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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: - What is the energy of He⁺ electron in first orbit?
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What is the energy of He⁺ electron in first orbit?
- An electric lamp is connected to 220 V, 50 Hz supply. Then the peak voltge is
- One coolie takes 1 minute to raise a suitcase through a height of 2 m
- An electron moves on a straight line path XY as shown. The abcd is a coil adjacent
- A block of mass m moving at a velocity v collides with another block of mass 2m
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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