अभिनेत्र लेंस की फोकस दूरी – McqOptions

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1.	अभिनेत्र लेंस की फोकस दूरी में परिवर्तन किया जाता हैः
A.	पुतली
B.	दृष्टिपटल
C.	पक्षमाभी (Ciliary)
D.	परितारिका से
Answer» D. परितारिका से

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