Science, asked by nihitsahu74, 6 months ago

अपवर्तनांक किसे कहते है ?
लिखिए।
3
गणना कीजिए।
की
2- एक उत्तल लेंस की फोकस दूरी 40 से.मी. हैं। लेंस की क्षमता की​

Answers

Answered by aravindakhote8
1

Explanation:

रेखीय आवर्धन से क्या आशय है स्पष्ट कीजिए

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