Question

write the formulae to find the focal length and linear magnification in terms of distance of object (u) and image (v).

Answer 1

we have 2 formula
i) M = -v/u
m =magnification
v =image distance
u =object distance


ii) M =hi/ho

Hi = image height

Ho = object hight

Answer 2

Here is your answer....

F represents focal length

and

M represents linear magnification

hope it helps...

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