General Science Physics Optics

కటకం సూత్రం ఎలా వ్యక్తీకరించబడింది?

1
\(\frac{1}{v}-\frac{1}{u} = \frac{1}{f}\)
2
\(\frac{1}{u} - \frac{1}{v} = \frac{1}{f}\)
3
\(\frac{1}{v} + \frac{1}{u} = \frac{1}{f}\)
4
\(\frac{-v}{u} = f\)

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