एक उत्तल लेंस की फोकस दूरी 40 सेंटीमीटर है लेंस की छमता की गणना कीजिए
Answers
Answered by
1
Answer:
2.5D
Explanation:
(p)=1/f
(p)=1/0.4m
(p)=10/4
(p)=2.5D
Answered by
0
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