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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: - A particle moving along X-axis has acceleration f,at time t given by f=fₒ(1- t/T)
- A cyclotron is used to accelerate
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle moving along X-axis has acceleration f,at time t given by f=fₒ(1- t/T)
- A cyclotron is used to accelerate
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
- Which of the following is an example of ideal black body?
- A charge of 40 µC is given to a capacitor having capacitance C=10 µF
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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