The following three part question is for a geometric optics lab. a.) Given an ob

Question

The following three part question is for a geometric optics lab.

a.) Given an object distance of 45[mm] and an image distance of 74[mm], then what is the focal length of the convex lense? f= ________ [mm]. (Answer with three sig. figs. or N/A if there is not enough information.)

b.) What is the magnification of the image given the above p and q? M= ______ (Answer with three sig. figs. or N/A if there is not enough information.)

c.) If p=q and f=28[mm], then p= ___________[mm]
(Answer to within a millimeter or N/A if there is not enough information.)

Thank you!

Explanation / Answer

part A:

for focal length f

1/f = 1/u + 1/v

1/f = 1/45 + 1/74

f = 28 mm

-----------

magification M = V/U

m = 74/45

M = 1.64

--------------------------

1/f = 1/p + 1/p

f = 2p

p = f/2

p = 28/2

p = 14 mm

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