 
                 
                InterviewSolution
 Saved Bookmarks
    				| 1. | A near sighted man cannot see objects clearly up to a distance of 1-5m. Calculate the power of the lens ofthe spectacles necessary for the remedy of this defect.3. | 
| Answer» The distance of far point x = 1.5mTo view distant objects, concave lens of focal length -1.5 should be used.i.e. f = -x = -1.5mPower of lens = 1/f = 1/(-1.5m) = -0.666D To correct this defect of vision, he must use a concave lens. The concave lens will bring the image back to the retina | |