A boy has difficulty reading the blackboard while sitting in the last row of…
2024
A boy has difficulty reading the blackboard while sitting in the last row of the class. He is suffering from which defect of vision, and what kind of lens can be used to correct it?
- A.
Hypermetropia, Convex lens
- B.
Myopia, Convex lens
- C.
Myopia, Concave lens
- D.
Hypermetropia, Concave lens
Attempted by 125 students.
Show answer & explanation
Correct answer: C
Correct answer: Myopia, Concave lens
The blackboard is a distant object for a student sitting in the last row.
Difficulty seeing distant objects clearly is called myopia or nearsightedness.
Myopia is corrected using a concave lens, which diverges incoming light rays so the image forms on the retina.