Science, asked by niteshsingh93204, 3 months ago

एक उत्तल लेंस की फोकस दूरी 40 से.मी. हैं। लेंस की क्षमता की गणना के

Answers

Answered by salikramprajapati83

3

Answer:

2.5

Explanation:

p=1/f

f=40cm(1m=100cm)

tab f=40/100=0.4

p=1/f

p=1/0.4

p=2.5

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