General Science- Ek Uttal Lens Ki Focus Doori 0.2 Meeter Hai . Iski Shamta Hogi ?

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Q.10597: एक उत्तल लेन्स की फोकस दूरी 0.2 मीटर है । इसकी क्षमता होगी ?
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एक उत्तल लेन्स की फोकस दूरी 0.2 मीटर है । इसकी क्षमता होगी ? General Science in hindi,  - 2D question answers in hindi pdf  - 4D questions in hindi, Know About +2D General Science online test General Science notes in hindi quiz book    +5D

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