A person with both myopia and hypermetropia needs which lenses?
ABi-focal
BBi-lateral
CBi-annual
DBi-partite
Answer & Solution
Correct answer: A. Bi-focal
1. One lens cannot correct both defects.
2. The common type joins a concave and a convex lens.
3. They are bi-focal lenses.
_Source: NCERT Class 10 Science, Ch 11 'The Human Eye and the Colourful World'_
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