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प्रश्न
If a person can see near objects clearly, but not the far off objects, his eye sight can be corrected by using a ______ lens of appropriate focal length.
विकल्प
convex
concave
MCQ
रिक्त स्थान भरें
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उत्तर
If a person can see near objects clearly, but not the far off objects, his eye sight can be corrected by using a concave lens of appropriate focal length.
shaalaa.com
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