McqMate
| Q. |
Which one of the following is used to remove Astigmatism for a human eye? |
| A. | Concave lens |
| B. | Convex lens |
| C. | Cylindrical lens |
| D. | Prismatic lens |
| Answer» C. Cylindrical lens | |
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Explanation: In Astigmatism, eye cannot see objects in two orthogonal directions clearly simultaneously. This abnormality is removed by using cylindrical lens. |
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Biology (GK)