Corrective lens — task. Science CBSE Homework Assignments, Class 10.

1. Myopia and hypermetropia can be corrected by

Concave and plano-convex lens
Concave and convex lens
Convex and concave lens
Plano-concave lens for both defects

2. Bi-focal lens are required to correct

astigmatism
coma
myopia
presbyopia

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