JAMB - Physics (2010 - No. 24)
Which of the following is used for the correction of short sightedness?
convex lens
concave lens
convex mirror
concave mirror
Giải thích
Concave lens diverges parallel rays of light. A short sighted person has the image formed before the retina,and the rays have to be diverged so that they intersect to form image onto the retina