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Science TNSB Mentoring
Class 10
Optics
Working and Defects of the human eye
7.
Defects of the eye
Question:
2
m.
Choose the correct answer for the given question from the options.
1. The _______ lens is used to correct presbyopia eye
concave
convex
bifocal
cylindrical
2. The ________ lens is used to correct astigmatism.
concave
bifocal
cylindrical
convex
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