(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two lenses, with 20cm focals are in 1m distance from each other.

A body is located 60cm from the right lens.

2. Relevant equations

I figured that the relevant equation should be:

[itex]\frac{n1}{u} + \frac{n2}{v} = \frac{n2 - n1}{r}[/itex]

but perhaps a I'm wrong.

3. The attempt at a solution

Using the equation above, when u = 60, n1=1(air), n2=1.5(glass) and r=f*2=40

and then again for u=v' (that we got at the first use of the equation) and my answers vary on my interpretation of the problem - my final answers was 20cm right to the right lense and v=51.42cm to the left of the left lense...

They both were wrong.

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# Homework Help: Two lenses problem, multiple interpretations, no true answer

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