Myopia and hypermetropia can be corrected by
A. Concave and plano-convex lens
B. Concave and convex lens
C. Convex and concave lens
D. Plano-concave lens for both defects.
Answer:B
Myopia and hypermetropia can be corrected by
A. Concave and plano-convex lens B. Concave and convex lens C. Convex and concave lens D. Plano-concave lens for both defects.