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Old Feb 5th 2012, 10:19 AM   #1
Junior Member
Join Date: Feb 2012
Posts: 1
Smile 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!

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Old Feb 6th 2012, 03:13 AM   #2
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Join Date: Apr 2008
Location: HK
Posts: 886
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?
Good results were achieved and the new task is to become a good doctor.
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  Physics Help Forum > High School and Pre-University Physics Help > Light and Optics

cookie, length, optics or focal, question, smart

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