MCQ
लेंस सूत्र क्षमता के पदों में होगा-
- A$P=\frac{1}{f}=\frac{1}{v}-\frac{1}{u}$
- B$P=\frac{1}{f}=\frac{1}{u}-\frac{1}{v}$
- C$P=\frac{1}{f}=-\frac{1}{u}-\frac{1}{v}$
- Dइनमें से कोई नहीं
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