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how is the formula derived?( formula is in image form)

how is the formula derived?( formula is in image form)

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4 Answers

robo
21 Points
6 years ago
its doesnt come by any derivation or proof its just how we defined it as 
Kalyani Jayachandran Menon
217 Points
5 years ago
This formula is taken directly from the definition of magnification.
Kalyani Jayachandran Menon
217 Points
5 years ago
Magnification is defined as the ratio of l to o or v to u. 
Aakash
110 Points
5 years ago
just observe carefully you yourslf an got th ans

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