एक उत्तल लेंस की फोकस दूरी 40 सेंटीमीटर है लेंस की क्षमता की गणना कीजिए
Answers
Answered by
2
Answer:
(P) = 1/f
(P) = 1/40cm
(P) = 1/0.4m
(P) = 10/4
(P) = 2.5D
Answered by
2
Step-by-step explanation:
(p)=1/f
(p)=1/0.4m
(p)=10/4
(p)=2.5D
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