Solving a Virtual Image Problem Involving a Converging Lens

AI Thread Summary
A converging lens with a focal length of 0.246 m creates a virtual image located 0.933 m from the lens, on the same side as the object. The appropriate formula for this scenario is 1/f = -1/di + 1/do, acknowledging that the virtual image distance (di) is negative. The user attempts to calculate the object distance (do) but arrives at an incorrect value of 0.197157 m. The discussion highlights the importance of correctly applying the lens formula for virtual images. Accurate calculations are crucial for solving lens problems effectively.
lpau001
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Homework Statement



A converging lens of focal length 0.246 m forms a virtual image of an object. The image appears to be .933 m from the lens on the same side as the object. What is the distance between the object and the lens?


Homework Equations


1/f = 1/di + 1/do

Since the image is virtual, it would be a negative distance right?

so 1/f = -1/di + 1/do


The Attempt at a Solution


I get do = (.246)(.993)/(.246+.993) = .197157 m
which is wrong..
 
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The formula1/f=1/di - 1/do
 

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