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किसी पतले उत्तल लेन्स पर आपतित समांतर किरणे लेन्स से 20 सेमी की दूरी पर प्रतिबिम्ब बनाती है | इस उत्तल लेन्स के सम्पर्क में एक अवतल लेन्स रखने पर प्रत

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in Physics by (92.4k points)
किसी पतले उत्तल लेन्स पर आपतित समांतर किरणे लेन्स से 20 सेमी की दूरी पर प्रतिबिम्ब बनाती है | इस उत्तल लेन्स के सम्पर्क में एक अवतल लेन्स रखने पर प्रतिबिम्ब लेन्स संयोजन से 25 सेमी की दूरी पर बनता है | अवतल लेन्स की क्षमता ज्ञात कीजिए |
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1 Answer

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Correct Answer - `-1` डायोप्टर |
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