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

A candle is placed 10 inches from a convex lens whose focal length is 5 in. Where will the image be formed? How large an image is formed?

2. Relevant equations

3. The attempt at a solution

Here we use the following formula to find where the image will be formed:

1/f=1/Do+1/Di 1/Di=1/f-1/Do =

1/Di=1/5-1/10 = 2-1/10 = 10 in.

Here's the equation to solve part B but I don't know how to figure "So" which would be dimensions of the candle. Any help?

Si=So(Di/Do) =

Si=So(10/10) =

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# Homework Help: Finding Size of Candle

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