Exam-style question
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Which type of lens is used to correct vision for someone who is nearsighted?.
- A.Biconvex lens
- B.Biconcave lens
- C.Plano-convex lens
- D.Convex lens
Model answer
What a good answer should say
- Biconcave lens
Explanation
Why this works
A biconcave lens, which is a type of diverging lens, is used to correct nearsightedness by diverging light rays before they enter the eye, allowing the image to focus correctly on the retina.
Common mistake
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