Physics · Human Eye and Colorful World
A student complains of difficulty in reading the blackboard clearly while sitting at the back of the class, but can read a book at 25 cm without difficulty. Which statement is correct for his condition?
- 1He has cataract and needs surgery
- 2He has presbyopia and needs bifocals
- 3He has hypermetropia and needs a convex lens
- 4He has myopia and needs a concave lens✓
Correct answer
He has myopia and needs a concave lens
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