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-   -   Could any smart cookie help me with this optics/focal length question? (http://physicshelpforum.com/light-optics/6171-could-any-smart-cookie-help-me-optics-focal-length-question.html)

ILoveGeeks Feb 5th 2012 10:19 AM

Could any smart cookie help me with this optics/focal length question?
 
Hey my mind is in a complete blank, been working on this for ages!
Can anyone please be a kind soul and help me out? I'll send you 2 million kudos points because I'm on the verge of tears here haha!!

Thank you for all your time!


https://fbcdn-sphotos-a.akamaihd.net...21907877_n.jpg

werehk Feb 6th 2012 03:13 AM

Before we help you to start to help you, may I ask u a question. Which formula in optics do you think is relevant in this question? Or what equations related to lens that you have learnt?


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